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#include <bits/stdc++.h> using namespace std; int query(long long a, long long b) { cout << a << << b << endl << flush; int ans; cin >> ans; return ans; } int main() { long long n; cin >> n; long long a = 0, b = 0, sa = 1, sb = 1; int ans = query(a + sa, b + sb); while (ans) { switch (ans) { case 1: a += sa; sa = min(sa * 2, n - a); break; case 2: b += sb; sb = min(sb * 2, n - b); break; case 3: sa = max(sa / 2, 1ll); sb = max(sb / 2, 1ll); break; default: return 0; } ans = query(a + sa, b + sb); } return 0; } |
#include <bits/stdc++.h> using namespace std; const int maxn = 1e6 + 5; int a[maxn], cnt[maxn]; int main() { int n, m, k; cin >> n >> m >> k; for (int i = 1; i <= n; i++) { cin >> a[i]; } int l = 1, r = 1; int ans = 0; cnt[a[1]]++; while (l <= n) { if (((r - l + 1) - cnt[a[l]]) <= k) { ans = max(ans, cnt[a[l]]); if (r < n) { r++; cnt[a[r]]++; } else { cnt[a[l]]--; l++; } } else { cnt[a[l]]--; l++; } } cout << ans << endl; return 0; } |
#include <bits/stdc++.h> using namespace std; #define ll long long #define MOD (ll)1000000007 #define pii pair<int,int> #define pll pair<ll,ll> #define UNIQUE(v) sort(v.begin(),v.end());v.erase(unique(v.begin(),v.end()),v.end()); ll GCD(ll a,ll b){return b?GCD(b,a%b):a;} ll power(ll a,ll b){ll ret=1;while(b){if(b%2)ret=ret*a%MOD;a=a*a%MOD;b/=2;}return ret;} ll a[200001]; int main() { int tc; scanf( %d ,&tc); while(tc--) { int n; scanf( %d ,&n); for(int i=1;i<=n;i++) scanf( %lld ,&a[i]); vector<ll> v; ll temp = 0; a[0] = a[n+1] = 1e18; for(int i=2;i<n;i++) { temp = max(temp, abs(a[i-1]-a[i]) + abs(a[i]-a[i+1])-abs(a[i+1]-a[i-1])); } temp = max(temp, abs(a[1]-a[2])); temp = max(temp, abs(a[n]-a[n-1])); ll ans = 0; for(int i=2;i<=n;i++) ans+=abs(a[i]-a[i-1]); printf( %lld n ,ans-temp); } return 0; } |
#include <bits/stdc++.h> using namespace std; bool has[20]; int dp[1010][12][12]; int use[1010][12][12]; int main() { for (int i = 1; i <= 10; i++) { char c; cin >> c; if (c == 1 ) has[i] = true; } int m; cin >> m; if (m == 1) { for (int i = 1; i <= 10; i++) if (has[i]) { cout << YES << endl << i << endl; return 0; } cout << NO << endl; return 0; } for (int i = 1; i <= 10; i++) for (int j = 1; j <= 10; j++) { use[m][i][j] = -1; dp[m][i][j] = true; } for (int i = m - 1; i >= 1; i--) for (int dif = 1; dif <= 10; dif++) for (int ls = 1; ls <= 10; ls++) for (int j = dif + 1; j <= 10; j++) if (j != ls && has[j]) { if (dp[i + 1][j - dif][j]) { dp[i][dif][ls] = true; use[i][dif][ls] = j; break; } } for (int i = 1; i <= 10; i++) if (has[i]) if (dp[1][i][i]) { cout << YES << endl; cout << i << ; int k = use[1][i][i]; int diff = i; int lev = 1; while (k != -1) { cout << k << ; lev++; diff = k - diff; k = use[lev][diff][k]; } return 0; } cout << NO << endl; } |
#include <bits/stdc++.h> using namespace std; void solve() { int n; cin >> n; vector<int> a(n); for (int i = 0; i < int(n); i++) cin >> a[i]; long long diff = 0; int m = a[0]; int ans = 0; for (int i = 0; i < n; i++) { if (a[i] >= m) { m = a[i]; } else { diff = (m - a[i]); int d = floor(log2(diff)) + 1; ans = max(d, ans); } } cout << ans << endl; } int main() { cin.tie(0); ios_base::sync_with_stdio(false); int t = 1; cin >> t; while (t--) { solve(); } return 0; } |
#include <bits/stdc++.h> using namespace std; long long fa[400005], iv[400005]; pair<long long, long long> p[2005]; long long dp[2005]; long long pw(long long bs, long long x) { long long ans = 1; while (x) { if (x & 1) ans = ans * bs % 1000000007; bs = bs * bs % 1000000007; x /= 2; } return ans % 1000000007; } void init() { fa[0] = iv[0] = 1; for (int i = 1; i <= 400000; i++) { fa[i] = fa[i - 1] * i % 1000000007; iv[i] = pw(fa[i], 1000000007 - 2) % 1000000007; } } long long cal(long long n, long long m) { if (m > n) return 0; long long ans = fa[n] % 1000000007; ans = (ans * iv[m] % 1000000007) * iv[n - m] % 1000000007; return ans; } long long lu(long long n, long long m) { if (m == 0) return 1; return cal(n % 1000000007, m % 1000000007) * lu(n / 1000000007, m / 1000000007) % 1000000007; } int main() { init(); long long n, m, k; cin >> n >> m >> k; n--; m--; for (int i = 0; i < k; i++) { cin >> p[i].first >> p[i].second; p[i].first--; p[i].second--; } sort(p, p + k); p[k].first = n; p[k].second = m; for (int i = 0; i <= k; i++) { long long sum = 0; for (int j = 0; j < i; j++) { long long x = p[i].first - p[j].first, y = p[i].second - p[j].second; if (x < 0 || y < 0) continue; sum = (sum + lu(x + y, x) * dp[j] % 1000000007) % 1000000007; } dp[i] = (cal(p[i].first + p[i].second, p[i].first) - sum + 1000000007) % 1000000007; } cout << dp[k] % 1000000007 << endl; } |
#include <bits/stdc++.h> using namespace std; const int MAXPOW = 20; const int MAXA = 1048577; const int MAXN = 100009; int n; int k; vector<int> a; unordered_set<int> visited[MAXN]; bool used[MAXA]; void gen() { freopen( input.txt , w , stdout); n = 100000; printf( %d n , n); for (int i = 0; i < n; ++i) printf( %d , rand() % 1000001); exit(0); } int stupid() { used[0] = true; for (int i = 0; i < n; ++i) { int x = 0; for (int j = i; j < n; ++j) { x |= a[j]; if (!used[x]) { cerr << i << : << i << endl; ; cerr << j << : << j << endl; ; cerr << x << : << x << endl; ; } used[x] = true; } } int cnt = 0; for (int i = 0; i < MAXA; ++i) if (used[i]) cnt++; return cnt; } int main() { scanf( %d , &n); a.resize(n); for (int i = 0; i < n; ++i) { scanf( %d , &a[i]); } for (int i = 0; i < n; ++i) { int x = 0; for (int j = i; j < n; ++j) { x |= a[j]; if (visited[j].find(x) != visited[j].end()) break; visited[j].insert(x); used[x] = true; } } int cnt = 0; for (int i = 0; i < MAXA; ++i) if (used[i]) cnt++; printf( %d n , cnt); return 0; } |
#include <bits/stdc++.h> using namespace std; const int N = 100010; int Mo[N], a[N]; inline int gi() { int x = 0, o = 1; char ch = getchar(); while (ch != - && (ch < 0 || ch > 9 )) ch = getchar(); if (ch == - ) ch = getchar(), o = -1; while (ch >= 0 && ch <= 9 ) x = x * 10 + ch - 0 , ch = getchar(); return x * o; } inline int phi(int x) { int ret = x, y = x; for (int i = 2; i * i <= y; i++) if (x % i == 0) { while (x % i == 0) x /= i; ret = ret / i * (i - 1); } if (x > 1) ret = ret / x * (x - 1); return ret; } inline void calc(int &x, int y, int M) { long long c = 1LL * x * y; x = (c < M ? c : c % M + M); } inline int Pow(int x, int y, int M) { int ret = 1; while (y) { if (y & 1) calc(ret, x, M); calc(x, x, M), y >>= 1; } return ret; } inline int solve(int l, int r, int t) { if (Mo[t] == 1) return 1; if (l == r) { if (a[l] < Mo[t]) return a[l]; return a[l] % Mo[t] + Mo[t]; } return Pow(a[l], solve(l + 1, r, t + 1), Mo[t]); } int main() { int n, m, q; cin >> n >> m; Mo[1] = m; for (int i = 1; Mo[i] ^ 1;) Mo[++i] = m = phi(m); for (int i = 1; i <= n; i++) a[i] = gi(); cin >> q; while (q--) { int l = gi(), r = gi(); printf( %d n , solve(l, r, 1) % Mo[1]); } return 0; } |
#include <bits/stdc++.h> using namespace std; int main() { long long t; cin >> t; while (t--) { long long n; cin >> n; string s; cin >> s; long long i; map<char, long long> mp; for (i = 0; i < n; i++) { mp[s[i]]++; } if (n == 2) { if (s[0] >= s[1]) { cout << NO << endl; } else { cout << YES << endl; cout << 2 << endl; cout << s[0] << << s.substr(1, n) << endl; } } else { cout << YES << endl; cout << 2 << endl; cout << s[0] << << s.substr(1, n) << endl; } } } |
#include <bits/stdc++.h> using namespace std; int main() { int n, x, y, flag = 0; cin >> n >> x >> y; n /= 2; if ((n == x && n == y) || (n == (x - 1) && n == (y - 1)) || (n == (x) && n == (y - 1)) || (n == (x - 1) && n == (y))) flag = 1; if (flag) cout << NO << endl; else cout << YES << endl; return 0; } |
#include <bits/stdc++.h> using namespace std; const int MAXN = 200005; const int inf = 1000000007; int main() { int a, b, c; int x, y, z; cin >> a >> b >> c; cin >> x >> y >> z; int da = a - x; int db = b - y; int dc = c - z; int can = max(0, da / 2) + max(0, db / 2) + max(0, dc / 2); int needed = min(0, da) + min(0, db) + min(0, dc); cout << (can + needed >= 0 ? Yes : No ) << endl; return 0; } |
#include <bits/stdc++.h> using namespace std; int n, k; long long s[211111], mx[211111]; int a[211111], bg[211111]; long long hf, ans; int bhf, aa, bb; int main() { scanf( %d%d , &n, &k); for (int i = 1; i <= n; ++i) { scanf( %d , &a[i]); s[i] = s[i - 1] + a[i]; } for (int i = k; i <= n; ++i) { if (s[i] - s[i - k] > mx[i - 1]) { mx[i] = s[i] - s[i - k]; bg[i] = i - k + 1; } else mx[i] = mx[i - 1], bg[i] = bg[i - 1]; } hf = 0; for (int i = n - k + 1; i >= 1; --i) { if (mx[i] + hf >= ans) { long long tmp = ans; ans = mx[i] + hf; if (tmp < ans) aa = bg[i], bb = bhf; if (bg[i] < aa || (bg[i] == aa && bhf < bb)) { aa = bg[i], bb = bhf; } } if (s[i + k - 1] - s[i - 1] >= hf) { hf = s[i + k - 1] - s[i - 1]; bhf = i; } } cout << aa << << bb << endl; } |
#include <bits/stdc++.h> using namespace std; string s[100] = { 111111101010101111100101001111111 , 100000100000000001010110001000001 , 101110100110110000011010001011101 , 101110101011001001111101001011101 , 101110101100011000111100101011101 , 100000101010101011010000101000001 , 111111101010101010101010101111111 , 000000001111101111100111100000000 , 100010111100100001011110111111001 , 110111001111111100100001000101100 , 011100111010000101000111010001010 , 011110000110001111110101100000011 , 111111111111111000111001001011000 , 111000010111010011010011010100100 , 101010100010110010110101010000010 , 101100000101010001111101000000000 , 000010100011001101000111101011010 , 101001001111101111000101010001110 , 101101111111000100100001110001000 , 000010011000100110000011010000010 , 001101101001101110010010011011000 , 011101011010001000111101010100110 , 111010100110011101001101000001110 , 110001010010101111000101111111000 , 001000111011100001010110111110000 , 000000001110010110100010100010110 , 111111101000101111000110101011010 , 100000100111010101111100100011011 , 101110101001010000101000111111000 , 101110100011010010010111111011010 , 101110100100011011110110101110000 , 100000100110011001111100111100000 , 111111101101000101001101110010001 }; int main() { int x, y; scanf( %d%d , &x, &y); printf( %c , s[x][y]); } |
#include <bits/stdc++.h> using namespace std; long long n, a[1000003]; pair<long long, long long> b[1000003]; long long calc1() { for (int i = 0; i < n; i++) b[i] = make_pair(-a[i], i); sort(b, b + n); set<signed> s1; s1.insert(-1); s1.insert(n); long long ret = 0; for (int i = 0; i < n; i++) { set<int>::iterator tmpr = s1.lower_bound(b[i].second), tmpl = prev(tmpr); ret -= (b[i].second - *tmpl) * (*tmpr - b[i].second) * b[i].first; s1.insert(b[i].second); } return ret; } long long calc2() { for (int i = 0; i < n; i++) b[i] = make_pair(-b[i].first, b[i].second); for (int i = 0; i < n / 2; i++) swap(b[i], b[n - i - 1]); set<signed> s1; s1.insert(-1); s1.insert(n); long long ret = 0; for (int i = 0; i < n; i++) { set<int>::iterator tmpr = s1.lower_bound(b[i].second), tmpl = prev(tmpr); ret += (b[i].second - *tmpl) * (*tmpr - b[i].second) * b[i].first; s1.insert(b[i].second); } return ret; } int main() { cin >> n; for (int i = 0; i < n; i++) scanf( %lld , a + i); cout << calc1() - calc2(); } |
#include <bits/stdc++.h> using namespace std; const int N = 100005; int i, j, k, n, m; pair<int, int> p[N]; int a[N]; int c[N]; int main() { cin >> n; for (i = 0; i < n; ++i) { cin >> p[i].first; p[i].second = i; } sort(p, p + n); k = 0; for (i = 0; i < n; ++i) { c[p[i].first]++; k = max(k, p[i].first); } for (i = 1; i <= k; ++i) if (c[i] == 0 || (i > 1 && c[i] > c[i - 1])) { cout << -1 << endl; return 0; } m = 0; k = 0; for (i = 0; i < n; ++i) { if (!i || p[i].first != p[i - 1].first) { k = 0; } ++k; m = max(m, k); a[p[i].second] = k; } cout << m << endl; for (i = 0; i < n; ++i) { cout << a[i] << ; } return 0; } |
#include <bits/stdc++.h> using namespace std; struct _ { ios_base::Init i; _() { ios_base::sync_with_stdio(false), cin.tie(NULL), cout.tie(NULL); } } _; const int lgn = 32; int n; vector<vector<int>> gr; vector<vector<int>> P; vector<int> lvl, ans, dp; map<pair<int, int>, int> ind; void pre(int curr, int par) { lvl[curr] = lvl[par] + 1; P[curr][0] = par; for (int j = 1; j <= lgn; j++) P[curr][j] = P[P[curr][j - 1]][j - 1]; for (auto child : gr[curr]) { if (child == par) continue; pre(child, curr); } return; } int lca(int u, int v) { if (lvl[u] > lvl[v]) swap(u, v); for (int j = lgn; j >= 0; j--) { if (lvl[P[v][j]] >= lvl[u]) v = P[v][j]; } if (u == v) return u; for (int j = lgn; j >= 0; j--) { if (P[u][j] != P[v][j]) u = P[u][j], v = P[v][j]; } return P[u][0]; } void pull(int curr, int par) { for (auto child : gr[curr]) { if (child == par) continue; pull(child, curr); dp[curr] += dp[child]; } if (curr != 1) ans[ind[{curr, par}]] = dp[curr]; return; } int main() { cin >> n; gr.resize(n + 1); lvl.resize(n + 1, 0); dp.resize(n + 1, 0); ans.resize(n - 1, 0); P.resize(n + 1, vector<int>(lgn + 1, 0)); for (int i = 0; i <= n - 2; i++) { int u, v; cin >> u >> v; gr[u].push_back(v); gr[v].push_back(u); ind[{u, v}] = ind[{v, u}] = i; } pre(1, 1); int q; cin >> q; while (q--) { int a, b; cin >> a >> b; if (lvl[a] > lvl[b]) swap(a, b); int lc = lca(a, b); if (lc == a) { dp[b]++; dp[a]--; } else { dp[a]++; dp[b]++; dp[lc] -= 2; } } pull(1, 1); for (int i = 0; i <= n - 2; i++) cout << ans[i] << ; return 0; } |
#include <bits/stdc++.h> using namespace std; bool rsort1(const pair<long long int, long long int> &a, const pair<long long int, long long int> &b) { return (a.first > b.first); } bool rsort2(const pair<long long int, long long int> &a, const pair<long long int, long long int> &b) { return (a.second > b.second); } bool sort2(const pair<long long int, long long int> &a, const pair<long long int, long long int> &b) { return (a.second < b.second); } int main() { ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL); long long int t; cin >> t; while (t--) { long long int h, m; cin >> h >> m; if (m == 0) cout << (24 - h) * 60 << n ; else cout << (23 - h) * 60 + (60 - m) << n ; } return 0; } |
#include <bits/stdc++.h> using namespace std; int main() { int t; cin >> t; while (t--) { int a, b; cin >> a; set<int> s; while (a--) { int b; cin >> b; s.insert(b); } cout << s.size() << endl; } return 0; } |
#include <bits/stdc++.h> using namespace std; int main() { int n; cin >> n; if (n == 1) { cout << 1; return 0; } long long a[100005]; for (int i = 0; i < n; i++) cin >> a[i]; long long ans = 0, kol = 1; for (int i = 0; i < n - 1; i++) if (a[i] == a[i + 1]) kol++; else { ans += kol * (kol + 1) / 2; kol = 1; } ans += kol * (kol + 1) / 2; cout << ans; return 0; } |
#include <bits/stdc++.h> using namespace std; int main() { long long n, p, q, a; cin >> p >> q >> n; for (int i = 1; i <= n; i++) { cin >> a; if (q == 0 || a > p / q) return cout << NO , 0; p -= q * a; swap(p, q); } cout << ((q) ? NO : YES ); } |
#include <bits/stdc++.h> #define maxn 1086 using namespace std; typedef long long ll; int n, m; ll a[maxn][maxn]; ll sum[maxn], sum2[maxn]; map<ll, int> mp; int main(){ scanf( %d%d , &m, &n); for(int i = 1;i <= n;i++) for(int j = 1;j <= m;j++) scanf( %lld , &a[i][j]); for(int i = 1;i <= n;i++) for(int j = 1;j <= m;j++) sum[i] += a[i][j], sum2[i] += a[i][j] * a[i][j]; for(int i = 2;i <= n;i++) mp[sum[i] - sum[i - 1]]++; int mx = 0; ll d, val; for(map<ll, int>::iterator it = mp.begin();it != mp.end();++it){ if(it->second > mx) mx = it->second, d = it->first; } int x; for(int i = 2;i <= n;i++){ if(sum[i] - sum[i - 1] != d){ if(i == n) x = n, val = d - (sum[i] - sum[i - 1]); else if(sum[i + 1] - sum[i] != d) x = i, val = d - (sum[i] - sum[i - 1]); else x = 1, val = sum[i] - sum[i - 1] - d; break; } } ll d2; if(x > 3) d2 = (sum2[1] + sum2[3] - 2 * sum2[2]) / 2; else d2 = (sum2[n - 2] + sum2[n] - 2 * sum2[n - 1]) / 2; for(int i = 1;i <= m;i++){ if(x == 1){ if(sum2[x] - a[x][i] * a[x][i] + (a[x][i] + val) * (a[x][i] + val) + sum2[x + 2] - 2 * sum2[x + 1] == 2 * d2) return printf( %d %d , x - 1, a[x][i] + val), 0; }else if(x == n){ if(sum2[x - 2]+ sum2[x] - a[x][i] * a[x][i] + (a[x][i] + val) * (a[x][i] + val) - 2 * sum2[x - 1] == 2 * d2) return printf( %d %d , x - 1, a[x][i] + val), 0; }else{ if(sum2[x - 1] + sum2[x + 1] - 2 * (sum2[x] - a[x][i] * a[x][i] + (a[x][i] + val) * (a[x][i] + val)) == 2 * d2) return printf( %d %d , x - 1, a[x][i] + val), 0; } } } |
#include <bits/stdc++.h> using namespace std; int n, m; vector<int> A, B; int d[10000010]; int a[10000010]; int pr[10010], pn; bool isp[100010]; void GetPrime(int n) { memset(isp + 2, 1, sizeof(isp) - 2); for (int i = 2; i < n; i++) { if (isp[i]) pr[pn++] = i; for (int j = 0; j < pn && pr[j] * i < n; j++) { isp[pr[j] * i] = 0; if (i % pr[j] == 0) break; } } } int main() { std::ios::sync_with_stdio(false); GetPrime(10000); cin >> n >> m; A.resize(n), B.resize(m); for (int i = 0; i < n; i++) cin >> A[i]; for (int i = 0; i < m; i++) cin >> B[i]; for (int i = 0; i < n; i++) { int t = A[i]; for (int j = 0; pr[j] * pr[j] <= t; j++) { while (t % pr[j] == 0) d[pr[j]]++, t /= pr[j]; } if (t > 1) d[t]++; } for (int i = 0; i < m; i++) { int t = B[i]; for (int j = 0; pr[j] * pr[j] <= t; j++) { while (t % pr[j] == 0) d[pr[j]]--, t /= pr[j]; } if (t > 1) d[t]--; } cout << n << << m << endl; for (int i = 0; i < n; i++) { int r = 1; int t = A[i]; for (int j = 0; pr[j] * pr[j] <= t; j++) { while (t % pr[j] == 0) { t /= pr[j]; if (d[pr[j]] > 0) { d[pr[j]]--; r *= pr[j]; } } } if (t > 1 && d[t] > 0) d[t]--, r *= t; cout << r << ; } cout << endl; for (int i = 0; i < m; i++) { int r = 1; int t = B[i]; for (int j = 0; pr[j] * pr[j] <= t; j++) { while (t % pr[j] == 0) { t /= pr[j]; if (d[pr[j]] < 0) { d[pr[j]]++; r *= pr[j]; } } } if (t > 1 && d[t] < 0) d[t]++, r *= t; cout << r << ; } cout << endl; return 0; } |
#include <bits/stdc++.h> using namespace std; int main() { long long n; cin >> n; long long x, y; long long a = 0, d = 0; for (long long i = 0; i < n; i++) { cin >> x >> y; if (x < 0) { a++; } else d++; } if (a <= 1) { cout << Yes << endl; } else if (d <= 1) { cout << Yes << endl; } else { cout << No << endl; } } |
#include <bits/stdc++.h> using namespace std; int n, k, ans, mx; vector<vector<int>> g; vector<bool> vis; bool a[100001]; void bfs(int src) { vis[src] = true; queue<int> q; q.push(src); while (!q.empty()) { int u = q.front(); q.pop(); for (int i = 0; i < g[u].size(); i++) { int v = g[u][i]; if (!vis[v]) { vis[v] = true; q.push(v); ans++; } } } } int main() { scanf( %d%d , &n, &k); g.resize(n); vis.resize(n); for (int a, b, i = 0; i < k; i++) { scanf( %d%d , &a, &b); --a; --b; g[a].push_back(b); g[b].push_back(a); } for (int i = 0; i < n; i++) { if (!vis[i]) bfs(i); } cout << k - ans; } |
#include <bits/stdc++.h> using namespace std; long long mod = 1e9 + 7; long long N = 100107; long long binpow(long long x, long long y) { if (y == 0) return 1; if (y == 1) return x % mod; else if (y % 2 == 0) { long long w = binpow(x, y / 2) % mod; return (w * w) % mod; } else return ((x % mod) * (binpow(x, y - 1) % mod)) % mod; } int main() { long long t = 1; cin >> t; while (t--) { long long n, m, k, kol = 0, sum = 0; set<long long> se1; set<long long> se2; vector<long long> v; string s; cin >> n >> m; long long a[n + 10][m + 10]; for (long long i = 1; i <= n; i++) for (long long j = 1; j <= m; j++) { cin >> a[i][j]; if (a[i][j] == 1) { se1.insert(i); se2.insert(j); } } long long mn = min(n - se1.size(), m - se2.size()); if (mn % 2 == 0) cout << Vivek ; else cout << Ashish ; cout << n ; } } |
#include <bits/stdc++.h> using namespace std; int n, m, a, b, fr, k1, k2; int dist[3005][3005]; bool flag[3005][3005]; vector<int> v[3005]; queue<int> q; int main() { scanf( %d %d , &n, &m); for (int i = 1; i <= m; i++) { scanf( %d %d , &a, &b); v[a].push_back(b); v[b].push_back(a); } for (int i = 1; i <= n; i++) for (int j = 1; j <= n; j++) dist[i][j] = 1e9; memset(flag, 1, sizeof(flag)); for (int k = 1; k <= n; k++) { while (!q.empty()) q.pop(); q.push(k); dist[k][k] = 0; while (!q.empty()) { fr = q.front(); q.pop(); flag[fr][fr] = false; for (int i = 0; i < v[fr].size(); i++) { if (flag[k][v[fr][i]]) { flag[k][v[fr][i]] = false; dist[k][v[fr][i]] = dist[k][fr] + 1; q.push(v[fr][i]); } } } } int s1, t1, l1, s2, t2, l2, ans = -1; scanf( %d %d %d , &s1, &t1, &l1); scanf( %d %d %d , &s2, &t2, &l2); for (int i = 1; i < n; i++) { for (int j = i + 1; j <= n; j++) { k1 = min(dist[s1][i] + dist[i][j] + dist[j][t1], dist[s1][j] + dist[i][j] + dist[i][t1]); k2 = min(dist[s2][i] + dist[i][j] + dist[j][t2], dist[s2][j] + dist[i][j] + dist[i][t2]); if (k1 <= l1 && k2 <= l2) { ans = max(ans, m - k1 - k2 + dist[i][j]); } } } if (dist[s1][t1] <= l1 && dist[s2][t2] <= l2) { ans = max(ans, m - dist[s1][t1] - dist[s2][t2]); } printf( %d n , ans); } |
#include <bits/stdc++.h> using namespace std; int cnt[200001], n, par; vector<int> adj[200001]; vector<pair<int, int> > v; void count(int h, int p) { cnt[h]++; for (auto it : adj[h]) if (it ^ p) { count(it, h); cnt[h] += cnt[it]; } } int ct(int h, int p) { for (auto it : adj[h]) if (it ^ p) { if (cnt[it] > n / 2) return ct(it, h); } par = p; return h; } vector<pair<int, pair<int, int> > > res; void dfs(int h, int p) { for (auto it : adj[h]) if (it ^ p) { dfs(it, h); } v.push_back({h, p}); } void f(int h, int p) { v.clear(); dfs(h, p); v.pop_back(); int t = h; for (auto it : v) { res.push_back({p, {t, it.first}}); res.push_back({it.first, {it.second, h}}); t = it.first; } res.push_back({p, {t, h}}); } int main() { scanf( %d , &n); for (int i = 1; i < n; i++) { int x, y; scanf( %d%d , &x, &y); adj[x].push_back(y); adj[y].push_back(x); } count(1, 0); int cen = ct(1, 0), cen2 = 0; for (auto it : adj[cen]) if (par ^ it && 2 * cnt[it] == n) cen2 = it; for (auto it : adj[cen]) if (it ^ cen2) f(it, cen); for (auto it : adj[cen2]) if (it ^ cen) f(it, cen2); printf( %d n , res.size()); for (auto it : res) printf( %d %d %d n , it.first, it.second.first, it.second.second); return 0; } |
#include <bits/stdc++.h> using namespace std; int main() { ios_base::sync_with_stdio(0); cin.tie(NULL); cout.tie(NULL); ; long long t; cin >> t; while (t--) { long long n, m; cin >> n >> m; string s; cin >> s; vector<long long> p(m), arr(26, 0); vector<long long> ans(n, 0); for (int i = 0; i < int(m); i++) { cin >> p[i]; ++ans[p[i] - 1]; } for (long long i = n - 1; i > 0; --i) ans[i - 1] += ans[i]; for (int i = 0; i < int(n); i++) { arr[s[i] - a ] += ans[i] + 1; } for (int i = 0; i < int(26); i++) cout << arr[i] << ; cout << n ; } return 0; } |
#include <bits/stdc++.h> using namespace std; int n, m, bal; string s, t; int main() { ios_base::sync_with_stdio(false); cin >> s; n = s.length(); bal = m = 0; for (int i = n - 1; i >= 0; --i) { if (s[i] == 0 ) --bal; else { if (bal + m >= 0) { int j = i; while (j >= 0 && s[j] == 1 ) { s[j] = 0 ; --j; ++m; } --bal; } else ++bal; } } cout << s; return 0; } |
#include <bits/stdc++.h> using namespace std; int n, m; int l[200000], r[200000], p[200001]; vector<int> beg[200001], ed[200001]; map<unsigned long long, unsigned long long> cnt, sum; unsigned long long h[200000], all; mt19937_64 mt(time(0)); int main() { scanf( %d%d , &n, &m); all = 0; for (int i = 0; i < (int)(n); ++i) { scanf( %d%d , l + i, r + i); --l[i], --r[i]; ++p[l[i]]; --p[r[i] + 1]; beg[l[i]].push_back(i); ed[r[i] + 1].push_back(i); h[i] = mt(); all ^= h[i]; } unsigned long long mask = 0, bmask = all, emask = 0, change = 0, ans = 0; for (int i = 0; i < (int)(m + 1); ++i) { for (int x : ed[i]) { emask ^= h[x]; } mask ^= change; ans += cnt[mask ^ all ^ bmask] * i - sum[mask ^ all ^ bmask]; ++cnt[mask ^ emask]; sum[mask ^ emask] += i; for (int x : beg[i]) { change ^= h[x]; bmask ^= h[x]; } for (int x : ed[i]) { change ^= h[x]; } } int t = 0, c = 0; for (int i = 0; i < (int)(m); ++i) { t += p[i]; if (t > 0) { c = 0; } else { ++c; ans -= (unsigned long long)c * (c + 1) / 2; } } cout << ans << endl; return 0; } |
#include <bits/stdc++.h> using namespace std; int main() { int n; cin >> n; string str; cin >> str; for (int i = 0;; i += 2) { if (i >= str.length() - 1) break; if (str[i] == str[i + 1]) { str.erase(str.begin() + i); i -= 2; } } if (str.length() % 2) str.erase(str.end() - 1); cout << n - str.length() << endl; cout << str << endl; } |
#include <bits/stdc++.h> using namespace std; int Map[15][15] = {0}, ro[15] = {0}, co[15] = {0}; int main() { int r, c, n, k, r1, c1, i, j, l1, l2, l3, l4, ans = 0, sum = 0; scanf( %d%d%d%d , &r, &c, &n, &k); for (i = 1; i <= n; i++) { scanf( %d%d , &r1, &c1); Map[r1][c1] = 1; } for (i = 1; i <= r; i++) { for (j = i; j <= r; j++) { for (l1 = 1; l1 <= c; l1++) { for (l2 = l1; l2 <= c; l2++) { for (l3 = i; l3 <= j; l3++) { for (l4 = l1; l4 <= l2; l4++) { sum += Map[l3][l4]; } } if (sum >= k) { ans++; } sum = 0; } } } } printf( %d n , ans); } |
#include <bits/stdc++.h> using namespace std; const int MAXN = 60; long long fib[MAXN]; int main() { int n; long long k; cin >> n >> k; fib[0] = 1; fib[1] = 1; for (int i = 2; i <= n; i++) fib[i] = fib[i - 1] + fib[i - 2]; int i = 0; while (i < n) { if (fib[n - i - 1] < k) { k -= fib[n - i - 1]; cout << i + 2 << << i + 1 << ; i += 2; } else { cout << i + 1 << ; i++; } } cout << endl; } |
#include <bits/stdc++.h> using namespace std; int main() { int n, k; int cnt; cin >> n; for (int i = 0; i < n; i++) { cin >> k; cnt = 0; if (k == 1 || k == 2 || k == 3 || k == 5 || k == 7 || k == 11) { cout << -1 << endl; } else { if (k % 4 == 3) { k = k - 15; cnt = 2; } else if (k % 4 == 2) { k = k - 6; cnt = 1; } else if (k % 4 == 1) { k = k - 9; cnt = 1; } cnt = cnt + (k / 4); cout << cnt << endl; } } return 0; } |
#include <bits/stdc++.h> using namespace std; string S; int MOD; int len; long long dp[1 << 18][100]; int cnt[1 << 18]; int bits[1 << 18]; int DMASKS[1 << 18]; int powers[20]; int orig; long long solve(int mask, int mod) { if (mask == 0) { return mod == 0; } long long &ret = dp[mask][mod]; if (ret != -1) return ret; ret = 0; int pos = len - cnt[mask]; int dMask = pos == 0; int m = mask; while (m > 0) { int b = m & -m; if (!(dMask & (1 << (S[bits[b]] - 0 )))) { ret += solve(mask ^ b, (mod + powers[len - pos - 1] * (S[bits[b]] - 0 )) % MOD); dMask |= 1 << (S[bits[b]] - 0 ); } m -= b; } return ret; } int main() { memset(dp, -1, sizeof dp); cin >> S >> MOD; len = S.size(); powers[0] = 1; powers[0] %= MOD; for (int i = 1; i < 20; i++) { powers[i] = powers[i - 1] * 10; powers[i] %= MOD; } for (int i = 0; i < 18; i++) { bits[1 << i] = i; } for (int i = 0, to = 1 << 18; i < to; i++) { cnt[i] = __builtin_popcount(i); } orig = (1 << len) - 1; cout << solve(orig, 0) << endl; return 0; } |
#include <bits/stdc++.h> using namespace std; const int M = 220000; vector<int> e1[M], e2[M]; int p[M], dis[M]; int main() { int n, m; cin >> n >> m; for (int i = 0; i < m; i++) { int u, v; cin >> u >> v; e1[u].push_back(v); e2[v].push_back(u); } int k; cin >> k; for (int i = 0; i < k; i++) cin >> p[i]; queue<int> q; q.push(p[k - 1]); dis[p[k - 1]] = 1; while (!q.empty()) { int u = q.front(); q.pop(); for (int v : e2[u]) { if (dis[v] == 0) { dis[v] = dis[u] + 1; q.push(v); } } } int mi = 0, mx = 0; for (int i = 0; i < k - 1; i++) { if (dis[p[i]] != dis[p[i + 1]] + 1) ++mi; for (int v : e1[p[i]]) { if (v != p[i + 1] && dis[v] == dis[p[i]] - 1) { ++mx; break; } } } cout << mi << << mx << endl; return 0; } |
#include <bits/stdc++.h> using namespace std; int main() { ios_base::sync_with_stdio(false); cin.tie(nullptr); int n; cin >> n; int a[n]; for (int i = 0; i < n; i++) cin >> a[i]; if (n == 1 || n == 2) { cout << n << n ; return 0; } int ans = 2, temp = 2; for (int i = 2; i < n; i++) { if (a[i] == a[i - 1] + a[i - 2]) { temp++; ans = max(ans, temp); } else { temp = 2; } } cout << ans << n ; return 0; } |
#include <bits/stdc++.h> using namespace std; const double Pi = 3.14159265358979323; int main() { ios_base::sync_with_stdio(0); cin.tie(); double x0, y0, v, T, n, x, y, r; vector<tuple<double, double> > c; cin >> x0 >> y0 >> v >> T; T = v * T * 1.0; cin >> n; while (n--) { cin >> x >> y >> r; double angulo, d, adiff; d = sqrt((x - x0) * (x - x0) + (y - y0) * (y - y0)); if (d * d <= r * r || (x == x0 && y == y0)) { cout << 1.000 n ; return 0; } if (r == 0) continue; if (d * d >= ((r + T) * (r + T))) continue; angulo = atan2(y - y0, x - x0); if (angulo < 0) { angulo += 2 * Pi; } if (sqrt(d * d - r * r) <= T) { adiff = asin(r / d); } else { adiff = acos((-r * r + T * T + d * d) / (2 * T * d)); } double x1 = angulo - adiff; if (x1 < 0) x1 = 2 * Pi + x1; c.push_back(make_tuple(x1, 1)); x1 = angulo + adiff; if (x1 > 2 * Pi) x1 -= 2 * Pi; c.push_back(make_tuple(x1, -1)); } sort(c.begin(), c.end()); double s = 0.0; int in = 0, fin = -1; vector<int> sweep(c.size(), 0); while (in != fin && c.size() != 0) { double angulo, con; if (fin == -1 && in == 0) fin = 0; tie(angulo, con) = c[in]; if (con == -1 && s == 0) fin = in; if (con == -1 && s > 0) s--; else if (con == 1) s++; sweep[in] += s; in++; in %= c.size(); } in = -1; for (int i = 0; i < c.size(); i++) { if (sweep[i] == 0) { in = i; in++; in %= c.size(); break; } } if (in == -1 && c.size() != 0) { cout << 1.00 ; return 0; } fin = -1; double sum = 0.0, an = -1; while (c.size() != 0 && in != fin) { if (fin == -1) fin = in; if (sweep[in] == 1 && an == -1) an = get<0>(c[in]); if (sweep[in] == 0) { if (get<0>(c[in]) < an) sum += get<0>(c[in]) - an + 2 * Pi; else sum += get<0>(c[in]) - an; an = -1; } in++; in %= c.size(); } cout << setprecision(20) << (sum / (2 * Pi)) << n ; return 0; } |
#include<bits/stdc++.h> // #include <ext/pb_ds/assoc_container.hpp> // #include <ext/pb_ds/tree_policy.hpp> // using namespace __gnu_pbds; using namespace std; // typedef tree<pair<int,int>, null_type, less<pair<int,int>>, rb_tree_tag, tree_order_statistics_node_update> ordered_set; #define ll long long #define scn(n) scanf( %d ,&n) #define lscn(n) scanf( %lld ,&n) #define lpri(n) printf( %lld ,n) #define pri(n) printf( %d ,n) #define pln() printf( n ) #define priln(n) printf( %d n ,n) #define lpriln(n) printf( %lld n ,n) #define rep(i,init,n) for(int i=init;i<n;i++) #define pb push_back #define mp make_pair #define F first #define S second #define gcd __gcd #define inf INT_MAX #define ninf INT_MIN #define inf INT_MAX #define linf LLONG_MAX #define lninf LLONG_MIN const int mod = 1e9 + 7; const int N = 2e5 + 4; int solve() { int n; scn(n); string s; cin >> s; vector<int> pre(n + 1, 0), suf(n + 1, 0); rep(i, 1, n + 1) { pre[i] = 1; if(i - 2 >= 0 and s[i - 1] != s[i - 2]) pre[i] += pre[i - 1]; } for(int i = n; i >= 1; i--) { suf[i] = 1; if(i < n and s[i - 1] != s[i]) suf[i] += suf[i + 1]; } rep(i, 0, n + 1) { if(i == 0) { if(s[i] == R ) printf( %d , suf[i + 1] + 1); else printf( 1 ); } else if(i == n) { if(s[i - 1] == L ) printf( %d , pre[i] + 1); else printf( 1 ); } else { int ans = 1; if(s[i] == R ) ans += suf[i + 1]; if(s[i - 1] == L ) ans += pre[i]; printf( %d , ans); } } return 0; } int main() { int t = 1; scn(t); while(t--) { solve(); } return 0; } |
#include <bits/stdc++.h> using namespace std; int n, k; int a[200005]; int cnt[400005]; int cv[400005]; int main() { int t; scanf( %d , &t); while (t--) { memset(cnt, 0, sizeof(cnt)); memset(cv, 0, sizeof(cv)); scanf( %d%d , &n, &k); for (int i = 1; i <= n; i++) scanf( %d , &a[i]); for (int i = 1; i * 2 <= n; i++) { cnt[a[i] + a[n - i + 1]]++; cv[min(a[i], a[n - i + 1]) + 1]++, cv[max(a[i], a[n - i + 1]) + k + 1]--; } for (int i = 3; i <= 2 * k; i++) cv[i] += cv[i - 1]; int ans = 200005; for (int x = 2; x <= 2 * k; x++) { ans = min(ans, n - cnt[x] - cv[x]); } printf( %d n , ans); } return 0; } |
#include <bits/stdc++.h> using namespace std; int a[100000]; vector<int> adjNos[100001]; vector<long long int> diff; int main() { int n; int m; long long int sum = 0; cin >> n >> m; for (int i = 0; i < m; i++) { cin >> a[i]; } for (int i = 0; i < m; i++) { if (i < m - 1) { if (a[i] != a[i + 1]) { adjNos[a[i]].push_back(a[i + 1]); adjNos[a[i + 1]].push_back(a[i]); } } } long long int beforeSum; long long int afterSum; int vlen; int median; for (int i = 1; i <= n; i++) { vlen = adjNos[i].size(); if (vlen == 0) { continue; } sort(adjNos[i].begin(), adjNos[i].end()); median = adjNos[i][vlen / 2]; beforeSum = 0; afterSum = 0; for (int j = 0; j < vlen; j++) { beforeSum += abs(i - adjNos[i][j]); afterSum += abs(median - adjNos[i][j]); } diff.push_back(beforeSum - afterSum); sum += beforeSum; } sum /= 2; if (diff.size() != 0) { sum -= *max_element(diff.begin(), diff.end()); } cout << sum << endl; return 0; } |
#include <bits/stdc++.h> using namespace std; typedef struct node_t { int l, r, k, id; friend bool operator<(const node_t& a, const node_t& b) { if (a.r == b.r) return a.l > b.l; return a.r < b.r; } void print() { printf( l = %d, r = %d, k = %d, id = %d n , l, r, k, id); } } node_t; const int maxn = 1e5 + 5; node_t Q[maxn], P[maxn]; int ans[maxn]; int main() { ios::sync_with_stdio(false); int n, m; scanf( %d , &n); for (int i = 0; i < n; ++i) { scanf( %d %d , &Q[i].l, &Q[i].r); Q[i].id = i; } scanf( %d , &m); for (int i = 0; i < m; ++i) { scanf( %d %d %d , &P[i].l, &P[i].r, &P[i].k); P[i].id = i + 1; } sort(Q, Q + n); sort(P, P + m); set<pair<int, int> > st; set<pair<int, int> >::iterator iter, titer; int i, j, k; i = 0; for (j = 0; j < m; ++j) { while (i < n && Q[i].r <= P[j].r) { st.insert(make_pair(Q[i].l, Q[i].id)); ++i; } iter = st.lower_bound(make_pair(P[j].l, -1)); while (iter != st.end() && P[j].k-- > 0) { ans[iter->second] = P[j].id; titer = iter; iter++; st.erase(titer); } } if (i < n || st.size() > 0) { puts( NO ); } else { puts( YES ); for (int i = 0; i < n; ++i) { printf( %d , ans[i]); } putchar( n ); } return 0; } |
#include <bits/stdc++.h> using namespace std; template <typename T, size_t N> long long SIZE(const T (&t)[N]) { return N; } template <typename T> long long SIZE(const T &t) { return t.size(); } string to_string(const string s, long long x1 = 0, long long x2 = 1e9) { return + ((x1 < s.size()) ? s.substr(x1, x2 - x1 + 1) : ) + ; } string to_string(const char *s) { return to_string((string)s); } string to_string(const bool b) { return (b ? true : false ); } string to_string(const char c) { return string({c}); } template <size_t N> string to_string(const bitset<N> &b, long long x1 = 0, long long x2 = 1e9) { string t = ; for (long long __iii__ = min(x1, SIZE(b)), __jjj__ = min(x2, SIZE(b) - 1); __iii__ <= __jjj__; ++__iii__) { t += b[__iii__] + 0 ; } return + t + ; } template <typename A, typename... C> string to_string(const A(&v), long long x1 = 0, long long x2 = 1e9, C... coords); long long l_v_l_v_l = 0, t_a_b_s = 0; template <typename A, typename B> string to_string(const pair<A, B> &p) { l_v_l_v_l++; string res = ( + to_string(p.first) + , + to_string(p.second) + ) ; l_v_l_v_l--; return res; } template <typename A, typename... C> string to_string(const A(&v), long long x1, long long x2, C... coords) { long long rnk = rank<A>::value; string tab(t_a_b_s, ); string res = ; bool first = true; if (l_v_l_v_l == 0) res += n ; res += tab + [ ; x1 = min(x1, SIZE(v)), x2 = min(x2, SIZE(v)); auto l = begin(v); advance(l, x1); auto r = l; advance(r, (x2 - x1) + (x2 < SIZE(v))); for (auto e = l; e != r; e = next(e)) { if (!first) { res += , ; } first = false; l_v_l_v_l++; if (e != l) { if (rnk > 1) { res += n ; t_a_b_s = l_v_l_v_l; }; } else { t_a_b_s = 0; } res += to_string(*e, coords...); l_v_l_v_l--; } res += ] ; if (l_v_l_v_l == 0) res += n ; return res; } void dbgm() { ; } template <typename Heads, typename... Tails> void dbgm(Heads H, Tails... T) { cerr << to_string(H) << | ; dbgm(T...); } void FIO() { ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0); } const long long N = 2e5 + 6; int32_t main() { FIO(); long long tc; cin >> tc; while (tc--) { long long n, m; cin >> m >> n; vector<vector<long long> > a(m, vector<long long>(n)); vector<long long> v(n, -1); for (long long i = 0; i < m; i++) { for (long long j = 0; j < n; j++) { cin >> a[i][j]; v[j] = max(v[j], a[i][j]); } } long long ans = 1e18; for (long long i = 0; i < n; i++) ans = min(ans, v[i]); if (n <= m) { long long val = -1; for (long long i = 0; i < m; i++) { sort(a[i].begin(), a[i].end()); val = max(val, a[i][n - 2]); } ans = min(ans, val); } cout << ans << n ; } return 0; } |
#include <bits/stdc++.h> using namespace std; const int mx = 2e5 + 7; const int base = 19260817; int a[mx]; int n; unsigned long long hs[mx * 2]; void init() { hs[0] = 1; for (int i = 1; i <= 2 * n; i++) hs[i] = hs[i - 1] * base; } int main() { int m, x; scanf( %d , &n); init(); for (int i = 1; i <= n; i++) { scanf( %d , &a[i]); } scanf( %d , &m); unsigned long long ans = 0, cur = 0; long long sum = 0; int p = 1, go = 1; for (int i = 1; i <= m; i++) { scanf( %d , &x); ans += hs[x - 1]; } if (m == 1) { printf( 0 n ); return 0; } int pre = 0; for (int i = 1; i <= m; i++) { sum += (i == 1 ? 0 : abs(a[p] - a[pre])); cur += hs[p - 1]; pre = p; p += go; if (p == n) go = -1; else if (p == 1) go = 1; } set<long long> s; if (cur == ans) s.insert(sum); for (int i = 2; i <= 2 * n - 2; i++) { cur -= i > n ? hs[2 * n - i] : hs[i - 2]; int end = i + (m - 1) % (2 * n - 2); while (end > 2 * n - 2) end -= 2 * n - 2; cur += end > n ? hs[2 * n - end - 1] : hs[end - 1]; sum -= abs(i <= n ? a[i] - a[i - 1] : a[2 * n - i] - a[2 * n - i + 1]); sum += abs(end <= n ? (end == 1 ? a[2] - a[1] : a[end] - a[end - 1]) : a[2 * n - end] - a[2 * n - end + 1]); if (cur == ans) { s.insert(sum); } } if (s.size() != 1) printf( -1 n ); else printf( %lld n , *s.begin()); return 0; } |
#include <bits/stdc++.h> #pragma comment(linker, /STACK:16777216 ) using namespace std; void rot(int n, int *x, int *y, int rx, int ry); int xy2d(int n, int x, int y) { int rx, ry, s, d = 0; for (s = n / 2; s > 0; s /= 2) { rx = (x & s) > 0; ry = (y & s) > 0; d += s * s * ((3 * rx) ^ ry); rot(s, &x, &y, rx, ry); } return d; } void d2xy(int n, int d, int *x, int *y) { int rx, ry, s, t = d; *x = *y = 0; for (s = 1; s < n; s *= 2) { rx = 1 & (t / 2); ry = 1 & (t ^ rx); rot(s, x, y, rx, ry); *x += s * rx; *y += s * ry; t /= 4; } } void rot(int n, int *x, int *y, int rx, int ry) { int t; if (ry == 0) { if (rx == 1) { *x = n - 1 - *x; *y = n - 1 - *y; } t = *x; *x = *y; *y = t; } } int main() { int a, b; cin >> a >> b; int x, y; d2xy(1 << a, b, &x, &y); cout << x << << y << endl; return 0; } |
#include <bits/stdc++.h> using namespace std; const int MOD = 1e9 + 7; int main() { ios::sync_with_stdio(0); cin.tie(0); cout.tie(0); puts( Even ); return 0; } |
#include <bits/stdc++.h> using namespace std; int main() { char s[60]; while (scanf( %s , s) == 1) { int k = strlen(s); int sum = 0; for (int i = 0; i < k / 2; i++) { if (s[i] == s[k - i - 1]) sum++; } int ans = k; if (sum == k / 2) ans -= 1; int t = 0; if (ans == k - 1) { for (int i = 1; i <= (k - 1) / 2; i++) { if (s[i] == s[k - i]) t++; } if (t == (k - 1) / 2) ans = 0; } printf( %d n , ans); } return 0; } |
#include <bits/stdc++.h> #pragma GCC optimize( O3 ) using namespace std; unsigned seed = chrono::system_clock::now().time_since_epoch().count(); mt19937 eng(seed); long long random2() { return (1ll << 31ll) * eng() + eng(); } long long n, m, k, q, T; const long long big = 1000000007; const long long big2 = 1000000009; const long long mod = 998244353; const int MAXN = 300001; long long PATH[401][401] = {0}; int main() { ios_base::sync_with_stdio(0); cin.tie(0); long long a, b, c, d, e; cin >> k; for (int c1 = 0; c1 < (401); ++c1) { for (int c2 = 0; c2 < (401); ++c2) { if (c1 == 0 && c2 == 1) PATH[c1][c2] = 1; if (c2 == 0) PATH[c1][c2] = 1; } } for (int i = 1; i < (k); ++i) { for (long long r = 1; r < k + 1; r++) { for (int x = 0; x < (r + 2); ++x) { if (x < r) PATH[i][r] += (PATH[i - 1][x] * PATH[i - 1][r - 1 - x]) % big; if (x < r + 1) PATH[i][r] += (1 + 2 * r) * ((PATH[i - 1][x] * PATH[i - 1][r - x]) % big); PATH[i][r] %= big; PATH[i][r] += r * (r + 1) * ((PATH[i - 1][x] * PATH[i - 1][r - x + 1]) % big); PATH[i][r] %= big; } } } cout << PATH[k - 1][1] << n ; return 0; } |
#include <bits/stdc++.h> using namespace std; const int inf = (int)1e9, maxn = (int)1e5 + 1; const double eps = (double)1e-8; const int mod = (int)1000000007; int c[200009], a[200009], t, k, f, n; vector<int> b[200009], o; int main() { cin >> n; memset((c), 0, sizeof(c)); ; for (int i = (1); i <= (n); i++) { scanf( %d , &(a[i])); b[a[i]].push_back(i); } k = 0; t = 1; for (int i = 1; i <= n && t; i++) { if (b[k].size() == c[k]) { t = 0; break; } o.push_back(b[k][c[k]]); c[k]++; if (k - 2 < 0 || b[k - 2].size() == c[k - 2] || b[k - 1].size() == c[k - 1] || b[k].size() == c[k]) { k++; continue; } k -= 2; } if (t) { cout << Possible << endl; for (int i = 0; i < o.size(); i++) { cout << o[i] << ; } return 0; } k--; for (int i = n; i >= 0; i--) { if ((b[i].size() != c[i] && i >= k) || (b[i].size() > c[i] + 1)) { cout << Impossible ; return 0; } if (b[i].size() == c[i] + 1 && (i == 0 || b[i - 1].size() == c[i - 1])) { if ((k - i + 1) % 3 != 0) { cout << Impossible ; return 0; } k = i; o.push_back(b[i][c[i]]); if (b[i + 1].size() != c[i + 1]) { o.push_back(b[i + 1][c[i + 1]]); k = i + 1; } } } cout << Possible << endl; for (int i = 0; i < o.size(); i++) { cout << o[i] << ; } return 0; } |
#include <bits/stdc++.h> using namespace std; int main() { cin.tie(NULL); ios::sync_with_stdio(false); long long int n, m, i, j, k, ans = 0; cin >> n >> m; long long int A[n], B[m]; string str(500, 0 ); for (i = 0; i < n; i++) cin >> A[i]; for (i = 0; i < m; i++) { cin >> k; k--; B[i] = k; } for (i = 0; i < m; i++) { j = i - 1; str = string(500, 0 ); while (j >= 0 && B[j] != B[i]) { if (str[B[j]] != 1 ) { ans += A[B[j]]; str[B[j]] = 1 ; } j--; } } cout << ans << endl; return 0; } |
#include <bits/stdc++.h> static const int MAXN = 2e5 + 4; static const int MAXK = 2e5 + 3; static int n, k; static std::pair<int, int> p[MAXN]; static int idx[MAXN]; static std::vector<int> q[MAXN]; static int ans[MAXN]; int main() { scanf( %d%d , &n, &k); for (int i = 0; i < n; ++i) { scanf( %d , &p[i].first); p[i].second = i; } for (int i = 0, u, v; i < k; ++i) { scanf( %d%d , &u, &v); --u, --v; q[u].push_back(v); q[v].push_back(u); } std::sort(p, p + n); for (int i = 0; i < n; ++i) idx[p[i].second] = i; for (int i = 0, j; i < n;) { for (j = i + 1; j < n && p[j].first == p[i].first; ++j) ; for (int count = i; i < j; ++i) { int r = count; for (int t : q[p[i].second]) if (p[idx[t]].first < p[i].first) --r; ans[p[i].second] = r; } } for (int i = 0; i < n; ++i) printf( %d%c , ans[i], i == n - 1 ? n : ); return 0; } |
#include <bits/stdc++.h> using namespace std; mt19937 rng_32(chrono::steady_clock::now().time_since_epoch().count()); const long long maxn = 3e5 + 10; struct E { long long to, nxt; } e[maxn * 2]; long long tot, head[maxn]; long long Add[maxn << 2], lz[maxn << 2]; void adde(long long u, long long v) { tot++; e[tot] = {v, head[u]}; head[u] = tot; } vector<pair<long long, long long> > v[maxn]; long long n; long long ans[maxn]; void dfs(int u, int fa, int dep) { int len = v[u].size(); for (int i = 0; i < len; i++) { int d = min(n + 1, dep + v[u][i].first + 1); Add[dep] += v[u][i].second; Add[d] -= v[u][i].second; } Add[dep] += Add[dep - 1]; ans[u] = Add[dep]; for (int i = head[u]; i; i = e[i].nxt) { int to = e[i].to; if (to == fa) continue; dfs(to, u, dep + 1); } for (int i = 0; i < len; i++) { int d = min(n + 1, dep + v[u][i].first + 1); Add[dep] -= v[u][i].second; Add[d] += v[u][i].second; } Add[dep] -= Add[dep - 1]; } int main() { cin >> n; long long t1, t2; for (long long i = 1; i < n; i++) { scanf( %lld%lld , &t1, &t2); adde(t1, t2); adde(t2, t1); } long long m, t3; cin >> m; for (long long i = 1; i <= m; i++) { scanf( %lld%lld%lld , &t1, &t2, &t3); v[t1].push_back(make_pair(t2, t3)); } dfs(1, 1, 1); for (int i = 1; i <= n; i++) printf( %lld , ans[i]); return 0; } |
#include <bits/stdc++.h> using namespace std; complex<double> a[524288], b[524288], r[524288], o[524289]; void fft(complex<double> *x, int n, int base) { int size = 0, mask = (n >> 1) - 1; for (int i = base - 1; i >= 0; --i, size = (size << 1) | 1, mask >>= 1) { for (int j = 0; j < n; ++j) { int front = j >> i, back = j & mask; int a = (front & size) << 1, b = a | 1; r[j] = x[(a << i) | back] + o[(front << i) * (524288 / n)] * x[(b << i) | back]; } for (int j = 0; j < n; ++j) x[j] = r[j]; } } void ifft(complex<double> *x, int n, int base) { fft(x, n, base); reverse(x + 1, x + n); for (int i = 0; i < n; ++i) x[i] /= n; } void pin(vector<int> *v) { cout << v->size() << : ; for (int i : *v) cout << i << ; cout << endl; } vector<int> *mg(vector<int> *pa, vector<int> *pb) { int nn = pa->size() + pb->size() + 2, base = 0; while ((1 << base) < nn) ++base; nn = (1 << base); for (int i = 0; i < pa->size(); ++i) a[i] = complex<double>((*pa)[i], 0); for (int i = pa->size(); i <= nn; ++i) a[i] = complex<double>(0, 0); for (int i = 0; i < pb->size(); ++i) b[i] = complex<double>((*pb)[i], 0); for (int i = pb->size(); i <= nn; ++i) b[i] = complex<double>(0, 0); fft(a, nn, base); fft(b, nn, base); for (int i = 0; i < nn; ++i) a[i] *= b[i]; ifft(a, nn, base); vector<int> *rt = new vector<int>(); for (int i = 0; i < nn; ++i) rt->push_back(((long long)(real(a[i]) + 0.5)) % 1009); while (rt->size() && rt->back() == 0) rt->pop_back(); delete pa; delete pb; return rt; } int cnt[524288]; const double PI = acos(-1); int32_t main() { ios_base::sync_with_stdio(0); cin.tie(0); for (int i = 0; i <= 524288; ++i) o[i] = exp(2. * i * PI / 524288 * complex<double>(0, 1)); int n, m, k; cin >> n >> m >> k; while (n--) { int t; cin >> t; ++cnt[t]; } auto cmp = [&](const vector<int> *a, const vector<int> *b) { return a->size() > b->size(); }; priority_queue<vector<int> *, vector<vector<int> *>, decltype(cmp)> pq(cmp); for (int i = 1; i <= m; ++i) { if (cnt[i] == 0) continue; vector<int> *v = new vector<int>(); for (int j = 0; j <= cnt[i]; ++j) v->push_back(1); pq.push(v); } while (pq.size() > 1u) { vector<int> *p1, *p2; p1 = pq.top(); pq.pop(); p2 = pq.top(); pq.pop(); pq.push(mg(p1, p2)); } vector<int> *ans = pq.top(); cout << (ans->size() > k ? (*ans)[k] : 0) << endl; } |
#include <bits/stdc++.h> using namespace std; int n, k, v; map<int, int> mp; vector<int> a; bool can(int mid) { int rem = 0; for (int i = 0; i < a.size(); i++) { if (mp[a[i]] >= mid) { rem += mp[a[i]] / mid; } } return rem >= k; } bool cmp(int s, int f) { return mp[s] > mp[f]; } int main() { ios_base ::sync_with_stdio(0); cin.tie(0); cout.tie(0); cin >> n >> k; for (int i = 0; i < n; i++) { cin >> v; mp[v]++; } for (auto i : mp) { a.push_back(i.first); } sort(a.begin(), a.end(), cmp); int l, r, ans = 1; l = 1, r = n; while (l < r) { int mid = (l + r) / 2; if (can(mid)) { l = mid + 1; ans = mid; } else { r = mid; } } n = a.size(); for (int i = 0; i < n; i++) { if (k - mp[a[i]] / ans >= 0) { for (int j = 0; j < mp[a[i]] / ans; j++) cout << a[i] << ; k -= mp[a[i]] / ans; } else { for (int j = 0; j < k; j++) cout << a[i] << ; break; } } } |
#include <bits/stdc++.h> using namespace std; void update(int *arr, int pos, int diff) { while (pos <= 100001) { arr[pos] = max(arr[pos], diff); pos += pos & -pos; } } int sum(int *arr, int pos) { int ret = 0; while (pos > 0) { ret = max(ret, arr[pos]); pos -= pos & -pos; } return ret; } int n, c, d; int coin[100001], dia[100001]; int main() { scanf( %d%d%d , &n, &c, &d); int ans = 0; for (int i = 0; i < n; i++) { int b, p; char k; int coin_max, dia_max, m; coin_max = 0; dia_max = 0; scanf( %d%d %c , &b, &p, &k); if (k == C ) { coin_max = sum(dia, d); if (p > c) continue; coin_max = max(coin_max, sum(coin, c - p)); update(coin, p, b); } else { dia_max = sum(coin, c); if (p > d) continue; dia_max = max(dia_max, sum(dia, d - p)); update(dia, p, b); } if (coin_max == 0 && dia_max == 0) continue; m = max(b + coin_max, b + dia_max); ans = max(ans, m); } printf( %d n , ans); return 0; } |
#include <bits/stdc++.h> signed main() { std::string s; std::cin >> s; long long n = s.size(); long long p = 0; long long ttl = 0; while (1) { if (p == n) break; while (p < n && std::isalpha(s[p])) ++p; long long a = 0; std::string tmp; while (p < n && (s[p] == . || std::isdigit(s[p]))) { tmp.push_back(s[p]); if (std::isdigit(s[p])) a = a * 10 + (s[p] - 0 ); ++p; } if (tmp.size() < 3 || tmp[tmp.size() - 3] != . ) a *= 100; ttl += a; } long long integral = ttl / 100; std::deque<char> output; if (integral == 0) { output.push_front( 0 ); } else { long long dgt = 0; while (integral) { if (dgt == 3) { dgt = 0; output.push_front( . ); } output.push_front(integral % 10 + 0 ); integral /= 10; ++dgt; } } long long fractional = ttl % 100; if (fractional) { output.push_back( . ); output.push_back( 0 + fractional / 10); output.push_back( 0 + fractional % 10); } for (auto ch : output) std::cout << ch; std::cout << std::endl; return 0; } |
#include <bits/stdc++.h> #pragma comment(linker, /STACK:256000000 ) using namespace std; vector<char> cc; void solve() { int n, m, k, d = 0; cin >> n >> m >> k; vector<string> arr(n), ans(n); for (int i = 0; i < n; i++) { cin >> arr[i]; ans[i].resize(m); for (int j = 0; j < m; j++) d += (arr[i][j] == R ); } vector<int> cnt; for (int i = 0; i < k - d % k; i++) cnt.push_back(d / k); for (int i = 0; i < d % k; i++) cnt.push_back(d / k + 1); vector<int> have(k); int ptr = 0; for (int i = 0; i < n; i++) { if (i % 2 == 0) { for (int j = 0; j < m; j++) { char cur = cc[ptr]; ans[i][j] = cur; have[ptr] += (arr[i][j] == R ); if (have[ptr] == cnt[ptr] && ptr < k - 1) ptr++; } } else { for (int j = m - 1; j >= 0; j--) { char cur = cc[ptr]; ans[i][j] = cur; have[ptr] += (arr[i][j] == R ); if (have[ptr] == cnt[ptr] && ptr < k - 1) ptr++; } } } for (int i = 0; i < n; i++) cout << ans[i] << n ; } int main() { srand(1373737); ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL); for (char c = 0 ; c <= 9 ; c++) cc.push_back(c); for (char c = a ; c <= z ; c++) cc.push_back(c); for (char c = A ; c <= Z ; c++) cc.push_back(c); int t; cin >> t; while (t--) solve(); return 0; } |
#include <bits/stdc++.h> using namespace std; const int inf = (int)1e9; const double eps = (double)1e-8; const int mod = (int)1000000007; const int maxn = (int)1e6 + 5; int n, l, r, z[2 * maxn]; string a, b, c, d; int main() { ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0); cin >> n; cin >> a; cin >> b; c = ; for (int i = (n - 1); i >= (0); i--) { if (a[i] == W ) c += E ; if (a[i] == E ) c += W ; if (a[i] == N ) c += S ; if (a[i] == S ) c += N ; } d = c + # + b; l = 0; r = 0; z[0] = 0; for (int i = (1); i < (d.size()); i++) { z[i] = 0; if (i <= r) z[i] = min(r - i + 1, z[i - l]); while (i + z[i] < d.size() && d[i + z[i]] == d[z[i]]) { z[i]++; } if (i + z[i] - 1 > r) { l = i; r = i + z[i] - 1; } if (i + z[i] - 1 == (int)d.size() - 1) { cout << NO ; return 0; } } cout << YES ; return 0; } |
#include <bits/stdc++.h> using namespace std; int n, m, k, s, x, y, cur, pr, cans, tot, a[2005][2005], dp[4][2005][2005]; vector<pair<int, int> > all[10]; int ans[10][10]; int dist(int x2, int y2, int x3, int y3) { return abs(x2 - x3) + abs(y2 - y3); } int main() { ios_base::sync_with_stdio(0); cin >> n >> m >> k >> s; for (int i = 1; i <= n; i++) { for (int j = 1; j <= m; j++) { cin >> cur; a[i][j] = cur; all[cur].push_back({i, j}); } } for (int i = 1; i <= k; i++) { for (int j = 0; j < 4; j++) for (int z = 0; z <= n + 1; z++) { for (int zr = 0; zr <= m + 1; zr++) { dp[j][z][zr] = -1e9; } } for (int j = 1; j <= n; j++) { for (int z = 1; z <= m; z++) { dp[0][j][z] = max(dp[0][j][z - 1] + 1, dp[0][j - 1][z] + 1); if (a[j][z] == i) dp[0][j][z] = max(dp[0][j][z], 0); } } for (int j = n; j >= 1; j--) { for (int z = 1; z <= m; z++) { dp[1][j][z] = max(dp[1][j][z - 1] + 1, dp[1][j + 1][z] + 1); if (a[j][z] == i) dp[1][j][z] = max(dp[1][j][z], 0); } } for (int j = 1; j <= n; j++) { for (int z = m; z >= 1; z--) { dp[2][j][z] = max(dp[2][j][z + 1] + 1, dp[2][j - 1][z] + 1); if (a[j][z] == i) dp[2][j][z] = max(dp[2][j][z], 0); } } for (int j = n; j >= 1; j--) { for (int z = m; z >= 1; z--) { dp[3][j][z] = max(dp[3][j][z + 1] + 1, dp[3][j + 1][z] + 1); if (a[j][z] == i) dp[3][j][z] = max(dp[3][j][z], 0); } } for (int j = i; j <= k; j++) { cans = -1e9; for (int z = 0; z < all[j].size(); z++) { x = all[j][z].first; y = all[j][z].second; cans = max(cans, dp[0][x][y]); cans = max(cans, dp[1][x][y]); cans = max(cans, dp[2][x][y]); cans = max(cans, dp[3][x][y]); } ans[i][j] = cans; } } tot = -1e9; for (int i = 0; i < s; i++) { cin >> cur; if (i) { if (pr < cur) tot = max(tot, ans[pr][cur]); else tot = max(tot, ans[cur][pr]); } pr = cur; } cout << tot; return 0; } |
#include <bits/stdc++.h> using namespace std; const long long int mod = 1e9 + 7; const int K = 3; int main() { long long int t; cin >> t; while (t--) { long long int n; cin >> n; long long int ans = -1; for (int i = 1; i <= n; ++i) { long long int x; cin >> x; ans = max(ans, x - i); } cout << ans << endl; } return 0; } |
#include <bits/stdc++.h> using namespace std; int main(void) { int n; cin >> n; long long ans = n; for (int i = 2; i * i <= n; ++i) if (n % i == 0) { while (n % i == 0) n /= i, ans += n; } if (n > 1) ++ans; cout << ans << endl; return 0; } |
#include <bits/stdc++.h> using namespace std; int n; int a[200200]; void solve() { scanf( %d , &n); for (int i = 0; i < n; i++) { scanf( %d , &a[i]); } int pref = 0; for (int i = 0; i < n; i++) { if (a[i]) pref++; else break; } if (pref == n) { printf( NO n ); return; } vector<int> rj; if (pref % 2 == 1) { for (int i = pref - 1; i < n - 2; i += 1) { int xr = a[i] ^ a[i + 1] ^ a[i + 2]; int sm = a[i] + a[i + 1] + a[i + 2]; if (xr == 0) { rj.push_back(i + 1); a[i] = 0; a[i + 1] = 0; a[i + 2] = 0; pref -= 1; break; } else { if (sm == 1) { rj.push_back(i + 1); a[i + 1] = 1; a[i + 2] = 1; i += 1; pref += 2; } else if (sm == 3) { i += 1; pref += 2; } } } } if (pref >= n) { printf( NO n ); return; } if (pref % 2 == 1) { printf( NO n ); return; } for (int i = pref - 1; i >= 1; i -= 2) { rj.push_back(i); } for (int i = 0; i < pref; i++) a[i] = 0; for (int i = pref; i < n - 2; i++) { int xr = a[i] ^ a[i + 1] ^ a[i + 2]; int sm = a[i] + a[i + 1] + a[i + 2]; if (sm == 0) continue; if (a[i]) { if (xr == 1) { rj.push_back(i + 1); rj.push_back(i); a[i] = 0; i++; a[i + 1] = 1; a[i] = 0; i--; } else { rj.push_back(i + 1); a[i] = 0; a[i + 1] = 0; a[i + 2] = 0; } } else { if (xr == 0) { rj.push_back(i + 1); a[i] = 0; a[i + 1] = 0; a[i + 2] = 0; } } } for (int i = 0; i < n; i++) { if (a[i]) { printf( NO n ); return; } } printf( YES n%d n , rj.size()); for (int i : rj) { printf( %d , i); } printf( n ); } int main() { int t; scanf( %d , &t); while (t--) { solve(); } return 0; } |
#include <bits/stdc++.h> using namespace std; const int N = 4e5 + 5; struct Edge { int to, nxt; } e[N * 2]; int n, head[N], cntE, siz[N], f[N][2]; int ans[N], g[N], mxpt[N], pos[N]; inline void add(int u, int v) { e[++cntE] = (Edge){v, head[u]}; head[u] = cntE; } void dfs1(int u, int fa) { siz[u] = 1; for (int i = head[u], v; i; i = e[i].nxt) if ((v = e[i].to) != fa) { dfs1(v, u); siz[u] += siz[v]; if (siz[v] > siz[mxpt[u]]) mxpt[u] = v; int w = siz[v] <= n / 2 ? siz[v] : f[v][0]; if (f[u][0] < w) f[u][1] = f[u][0], f[u][0] = w, pos[u] = v; else f[u][1] = max(f[u][1], w); } } void dfs2(int u, int fa) { if (siz[mxpt[u]] > n / 2) ans[u] = siz[mxpt[u]] - f[mxpt[u]][0] <= n / 2; else ans[u] = n - siz[u] - g[u] <= n / 2; for (int i = head[u], v; i; i = e[i].nxt) if ((v = e[i].to) != fa) { int w = (n - siz[u] <= n / 2) ? n - siz[u] : g[u]; g[v] = max(w, f[u][pos[u] == v]); dfs2(v, u); } } int main() { scanf( %d , &n); for (int i = 1, a, b; i < n; ++i) { scanf( %d%d , &a, &b); add(a, b); add(b, a); } dfs1(1, 0); dfs2(1, 0); for (int i = 1; i <= n; ++i) printf( %d , ans[i]); return 0; } |
#include <bits/stdc++.h> using namespace std; int n, m; pair<int, int> a[200]; pair<int, int> b[200]; int pp[200]; int main() { scanf( %d%d , &n, &m); for (int i = 1; i <= n; i++) { int aa, bb; scanf( %d%d , &aa, &bb); a[i].first = min(aa, bb), a[i].second = max(aa, bb); } for (int i = 1; i <= m; i++) { int aa, bb; scanf( %d%d , &aa, &bb); b[i].first = min(aa, bb), b[i].second = max(aa, bb); } for (int i = 1; i <= n; i++) { bool flag1 = false, flag2 = false; for (int j = 1; j <= m; j++) { if (a[i].first != b[j].first && a[i].second == b[j].second) pp[b[j].second] = 1, flag1 = true; if (a[i].second != b[j].second && a[i].first == b[j].first) pp[b[j].first] = 1, flag2 = true; if (a[i].second != b[j].first && a[i].first == b[j].second) pp[b[j].second] = 1, flag2 = true; if (a[i].first != b[j].second && a[i].second == b[j].first) pp[b[j].first] = 1, flag1 = true; if (flag1 && flag2 && a[i].first != a[i].second) { cout << -1 << endl; return 0; } } } for (int i = 1; i <= m; i++) { bool flag1 = false, flag2 = false; for (int j = 1; j <= n; j++) { if (a[j].first != b[i].first && a[j].second == b[i].second) flag2 = true; if (a[j].second != b[i].second && a[j].first == b[i].first) flag1 = true; if (a[j].second != b[i].first && a[j].first == b[i].second) flag2 = true; if (a[j].first != b[i].second && a[j].second == b[i].first) flag1 = true; if (flag1 && flag2 && b[i].first != b[i].second) { cout << -1 << endl; return 0; } } } int sum = 0; int ans; for (int i = 1; i <= 9; i++) { if (pp[i]) ans = i; sum += pp[i]; } if (sum == 1) { cout << ans << endl; return 0; } else { cout << 0 << endl; return 0; } return 0; } |
#include <bits/stdc++.h> using namespace std; const int maxn = (int)2e5 + 10; vector<int> res[maxn]; int main() { string s; cin >> s; stack<int> st, st2; int ma = 0; for (int i = 0; i < s.size(); i++) { if (s[i] == 1 ) { if (st.empty()) { cout << -1 << endl; return 0; } res[st.top()].push_back(i + 1); st2.push(st.top()); st.pop(); } else { if (!st2.empty()) { res[st2.top()].push_back(i + 1); st.push(st2.top()); st2.pop(); } else { res[ma].push_back(i + 1); st.push(ma); ma++; } } } if (!st2.empty()) { cout << -1 << endl; return 0; } int cnt = 0; for (int i = 0; i < maxn; i++) if (!res[i].empty()) cnt++; cout << cnt << endl; for (int i = 0; i < maxn; i++) if (!res[i].empty()) { printf( %d , res[i].size()); for (int j = 0; j < res[i].size(); j++) { printf( %d , res[i][j]); } printf( n ); } return 0; } |
#include <bits/stdc++.h> using namespace std; const int MX = 255; int dx[] = {1, 0, -1, 0}, dy[] = {0, 1, 0, -1}; char s[MX][MX]; long long tot[MX][MX]; int was[MX][MX]; int cur[MX][MX]; int main() { int n, m, p, w; scanf( %d %d %d %d , &n, &m, &p, &w); for (int i = 1; i <= n; i++) { scanf( %s , s[i]); for (int j = m; j >= 1; j--) { s[i][j] = s[i][j - 1]; } s[i][0] = 0 ; } int cnt = 0; for (int i = 1; i <= n; i++) { for (int j = 1; j <= m; j++) { if (s[i][j] >= A && s[i][j] <= Z ) { cnt++; queue<pair<int, int> > q; q.push(make_pair(i, j)); cur[i][j] = p * (s[i][j] - A + 1); was[i][j] = cnt; while (!q.empty()) { int xx = q.front().first, yy = q.front().second; q.pop(); tot[xx][yy] += cur[xx][yy]; for (int dir = 0; dir < 4; dir++) { int nx = xx + dx[dir], ny = yy + dy[dir]; if (was[nx][ny] != cnt && cur[xx][yy] / 2 > 0 && s[nx][ny] != * && nx >= 1 && nx <= n && ny >= 1 && ny <= m) { was[nx][ny] = cnt; cur[nx][ny] = cur[xx][yy] / 2; q.push(make_pair(nx, ny)); } } } } } } int res = 0; for (int i = 1; i <= n; i++) { for (int j = 1; j <= m; j++) { if (tot[i][j] > w) res++; } } printf( %d n , res); } |
#include <bits/stdc++.h> using namespace std; vector<pair<int, int> > ans; int p[2000], damage[2000], u[2000]; int main() { int n, Max, r, used = 0, TT; cin >> n >> Max >> r; for (int i = 1; i <= n; i++) cin >> p[i] >> damage[i]; int cap = Max; memset(u, 0, sizeof(u)); for (int s = 0;; s++) { int cur = -1; for (int i = 1; i <= n; i++) if (!u[i] && p[i] / 100.00 >= Max / double(cap)) if (cur == -1 || damage[i] > damage[cur]) cur = i; if (cur == -1 && r >= 0) { cout << NO << endl; return 0; } if (cur != -1) { r -= damage[cur]; u[cur] = 1; used++; ans.push_back(make_pair(s, cur)); } Max += r; if (Max > cap) Max = cap; if (Max <= 0) { TT = s + 1; break; } } cout << YES << endl; cout << TT << << ans.size() << endl; for (int i = 0; i < ans.size(); i++) cout << ans[i].first << << ans[i].second << endl; return 0; } |
#include <bits/stdc++.h> using namespace std; const long long int N = 100001; bool ok; long long int n, q; long long int trie[6 * N][5], done[6 * N]; long long int nxt = 1; string s; void insert(string s) { long long int node = 0; for (char c : s) { if (trie[node][c - a ] == 0) { node = trie[node][c - a ] = nxt++; } else { node = trie[node][c - a ]; } } done[nxt - 1] = 1; } void dfs(long long int u, long long int idx, long long int f) { if (f >= 2) return; if (idx == s.length() - 1 && f == 1 && done[u]) { ok = 1; return; } if (idx == s.length() - 1 || done[u]) return; for (long long int i = 0; i < 3; i++) { if (trie[u][i] == 0) continue; if (s[idx + 1] == (char)(i + a )) dfs(trie[u][i], idx + 1, f); else dfs(trie[u][i], idx + 1, f + 1); } } int32_t main() { ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0); cin >> n >> q; for (long long int i = 0; i < n; i++) { cin >> s; insert(s); } for (long long int i = 0; i < q; i++) { cin >> s; ok = 0; dfs(0, -1, 0); cout << (ok ? YES n : NO n ); } return 0; } |
#include <bits/stdc++.h> using namespace std; int ar[310]; bool mp[310][310]; int main() { int n; cin >> n; for (int i = 1; i <= n; i++) cin >> ar[i]; string str; for (int i = 1; i <= n; i++) { cin >> str; for (int j = 0; j < n; j++) if (str[j] == 1 ) mp[i][j + 1] = true; } for (int k = 1; k <= n; k++) for (int i = 1; i <= n; i++) for (int j = 1; j <= n; j++) if (mp[i][k] && mp[k][j]) mp[i][j] = true; for (int i = 1; i < n; i++) for (int j = i + 1; j <= n; j++) if (ar[i] > ar[j] && mp[i][j]) swap(ar[i], ar[j]); cout << ar[1]; for (int i = 2; i <= n; i++) cout << << ar[i]; cout << n ; } |
#include <bits/stdc++.h> using namespace std; int main() { ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0); ; long long int n; cin >> n; string s; cin >> s; vector<long long int> v(n + 1, 0); for (long long int i = 1; i <= n; i++) { if (s[i - 1] == ( ) v[i] = v[i - 1] + 1; else v[i] = v[i - 1] - 1; } if (v[n] != 0) { cout << -1 << n ; return 0; } long long int ans = 0; long long int temp = 0; for (long long int i = 1; i <= n; i++) { if (v[i] < 0) { temp++; } else if (v[i] == 0 && v[i - 1] < 0) { temp++; ans += temp; temp = 0; } } cout << ans << n ; return 0; } |
#include <bits/stdc++.h> using namespace std; using ll = long long; using ld = long double; using vi = vector<int>; using vll = vector<ll, ll>; using pii = pair<int, int>; using pll = pair<ll, ll>; ll modpow(ll a, ll b, ll mod = (ll)(1e9 + 7)) { if (!b) return 1; a %= mod; return modpow(a * a % mod, b / 2, mod) * (b & 1 ? a : 1) % mod; } mt19937 rng(chrono::steady_clock::now().time_since_epoch().count()); const int DEBUG = 1; const int mxk = 13, mxm = 4, dsz = (1 << mxm) * mxk, mod = 1e9 + 7; int n, m, k; void add(ll &a, ll b) { a += b; if (a >= mod) a -= mod; } struct Matrix { ll a[dsz][dsz]; Matrix() { for (int i = 0; i < dsz; i++) for (int j = 0; j < dsz; j++) a[i][j] = 0; } } id; void init() { for (int i = 0; i < dsz; i++) id.a[i][i] = 1; } Matrix operator*(Matrix a, Matrix b) { Matrix ret; for (int i = 0; i < dsz; i++) for (int j = 0; j < dsz; j++) for (int kk = 0; kk < dsz; kk++) add(ret.a[i][kk], a.a[i][j] * b.a[j][kk] % mod); return ret; } int cnv(int mask, int kk) { return (kk << mxm) + mask; } int rot(int mask) { return (mask << 1) % (1 << m); } Matrix modpow(Matrix a, ll b) { Matrix ans = id; while (b) { if (b & 1) ans = ans * a; a = a * a; b /= 2; } return ans; } void solve() { init(); Matrix op; for (int mask = 0; mask < 1 << m; mask++) for (int kk = 0; kk <= k; kk++) { add(op.a[cnv(rot(mask), kk)][cnv(mask, kk)], 1); if (kk < k) add(op.a[cnv(rot(mask) + 1, kk + 1)][cnv(mask, kk)], 1 + __builtin_popcount(mask)); } Matrix b; b.a[0][0] = 1; Matrix res = modpow(op, n) * b; ll ans = 0; for (int mask = 0; mask < 1 << m; mask++) add(ans, res.a[cnv(mask, k)][0]); cout << ans << endl; } int main() { ios_base::sync_with_stdio(false); cin.tie(NULL); while (cin >> n >> k >> m) solve(); return 0; } |
#include <bits/stdc++.h> using namespace std; template <typename T> bool chmax(T& a, const T& b) { return a < b ? (a = b, true) : false; } template <typename T> bool chmin(T& a, const T& b) { return b < a ? (a = b, true) : false; } int N; string S; int main() { cin >> S; N = S.size(); for (int i = (1); i < (N); i++) { if (S[i] == S[i - 1]) { cout << Impossible << endl; return 0; } } char twice; for (char c = A ; c <= Z ; c++) { if (count((S).begin(), (S).end(), c) == 2) { twice = c; break; } } int x = S.find(twice), y = S.find(twice, x + 1); string a = S.substr(0, x), b = S.substr(x + 1, y - x - 1), c = S.substr(y + 1); string t = b + c + a; vector<string> ans(2, string(13, . )); ans[0][12 - b.size() / 2] = twice; int idx = 0; bool flag = false; while (true) { for (int i = 0; i < 13; i++) { if (ans[0][i] == twice && flag == false) { flag = true; } else if (ans[0][i] == twice && flag == true) { cout << ans[0] << endl; cout << ans[1] << endl; return 0; } else if (flag && idx < t.size()) { ans[0][i] = t[idx++]; } } for (int i = 12; i >= 0; i--) { if (flag && idx < t.size()) { ans[1][i] = t[idx++]; } } } return 0; } |
#include <bits/stdc++.h> using namespace std; const int INF = 1000000000; const long long INFLL = 1000000000000000000LL; const int h = 300000000; int l, r; int pr[(h >> 6) + 1]; int main() { scanf( %d%d , &l, &r); int res = 0; int r2 = (r - 1) / 2; pr[0] |= 1; for (int i = (1), _b = ((sqrt(2.0 * r2 + 1) + 1) / 2); i < _b; ++i) if ((~pr[i >> 5]) & (1 << (i & 31))) for (int i2 = 2 * i + 1, v = i * (i + 1) << 1; v <= r2; v += i2) pr[v >> 5] |= 1 << (v & 31); if (l <= 2 && 2 <= r) ++res; for (int v = 2; v <= r2; v += 2) if (l <= 2 * v + 1 && (~pr[v >> 5]) & (1 << (v & 31))) ++res; printf( %d n , res); return 0; } |
#include<bits/stdc++.h> using namespace std; #define ll long long #define pb push_back #define f first #define s second #define go ios::sync_with_stdio(0); cin.tie(0); cout.tie(0) /* ll dx[8]={-1,-1,-1,0,0,1,1,1}; ll dy[8]={-1,0,1,-1,1,-1,0,1}; bool sortbysec(const pair<int,int> &a, const pair<int,int> &b) { return (a.second < b.second); } */ int main() { ll t; cin>>t; while(t--) { ll n; cin>>n; for(int i=2;i<=n;i++) cout<<i<< ; cout<< 1 <<endl; } } |
#include <bits/stdc++.h> using namespace std; const int maxn = 200010; map<int, int> mp; int n; struct pnt { int x, w; bool operator<(const pnt &p) const { return x < p.x; } } p[maxn]; int ask(int x) { int res = 0; for (int i = x; i > 0; i -= (i & -i)) if (mp.count(i)) res = max(res, mp[i]); return res; } void update(int x, int v) { for (int i = x; i < 0x3f3f3f3f; i += (i & -i)) mp[i] = max(mp[i], v); } int main() { scanf( %d , &n); for (int i = 0; i < n; i++) scanf( %d%d , &p[i].x, &p[i].w); sort(p, p + n); int ans = 0; for (int i = 0; i < n; i++) { int tmp = ask(p[i].x - p[i].w); ans = max(ans, tmp + 1); update(p[i].x + p[i].w, tmp + 1); } printf( %d n , ans); return 0; } |
#include <bits/stdc++.h> int main() { int n; scanf( %d , &n); for (int i = n + 1; i < 10000; i++) { int d = i % 10; int c = (i % 100 - d) / 10; int a = i / 1000; int b = (i - 1000 * a) / 100; if (a != b && a != c && a != d && b != c && b != d && c != d) { printf( %d%d%d%d , a, b, c, d); break; } } return 0; } |
#include <bits/stdc++.h> using namespace std; const int N = 1e5 + 2; long long n, m; long long a[N], b[N]; long long f(long long x) { long long res = 0; for (long long(i) = (0); (i) < (n); (i)++) { if (a[i] < x) res += llabs(a[i] - x); } for (long long(i) = (0); (i) < (m); (i)++) { if (b[i] > x) res += llabs(b[i] - x); } return res; } int main() { ios_base::sync_with_stdio(0); cin.tie(0); ; cin >> n >> m; for (long long(i) = (0); (i) < (n); (i)++) cin >> a[i]; for (long long(i) = (0); (i) < (m); (i)++) cin >> b[i]; long long le = 1, ri = 1e9; while (llabs(ri - le) > 3) { long long m1 = le + (ri - le) / 3; long long m2 = ri - (ri - le) / 3; if (f(m1) < f(m2)) ri = m2; else le = m1; } long long ans = 1e18; for (long long(x) = (le); (x) < (ri + 1); (x)++) { ans = min(ans, f(x)); } cout << ans << endl; return 0; } |
#include <bits/stdc++.h> using namespace std; int main() { ios::sync_with_stdio(0); cin.tie(0); int t; cin >> t; while (t--) { int n; cin >> n; long long ma = -1e15, need = 0; for (int i = 0; i < n; i++) { long long a; cin >> a; ma = max(a, ma); need = max(need, ma - a); } long long ans = 0; while ((1ll << ans) - 1 < need) ans++; cout << ans << endl; } } |
#include <bits/stdc++.h> using namespace std; int main() { double eps = 1e-12; double y1, y2, yw, xb, yb, r; cin >> y1 >> y2 >> yw >> xb >> yb >> r; double yk = yw - r; double yt = y1 + r; double d1 = yk - yt; double d2 = yk - yb; double xk = xb * d1 / (d2 + d1); double A = yt - yk; double B = xk; double C = -B * yt; double h = fabs(B * y2 + C) / sqrt(A * A + B * B); if (r > h - eps) { cout << -1 << endl; } else { printf( %.12lf n , xk - eps); } return 0; } |
#include <bits/stdc++.h> using namespace std; const int inf = 0x3f3f3f3f; const int mod = 1e9 + 7; int n, a[500010], b[500010], c[500010], bit[500010]; void init() { for (int i = 1; i <= n; i++) { bit[i] = 0; } } int lowbit(int x) { return x & (-x); } void add(int u, int x) { for (; u <= n; u += lowbit(u)) { bit[u] = (bit[u] + x) % mod; } } int sum(int u) { int res = 0; for (; u >= 1; u -= lowbit(u)) { res = (res + bit[u]) % mod; } return res; } int main() { scanf( %d , &n); for (int i = 1; i <= n; i++) { scanf( %d , &a[i]); b[i] = a[i]; } sort(b + 1, b + n + 1); for (int i = 1; i <= n; i++) { a[i] = lower_bound(b + 1, b + n + 1, a[i]) - b; } int ans = 0; init(); for (int i = 1; i <= n; i++) { ans = (ans + 1LL * b[a[i]] * sum(a[i]) % mod * (n - i + 1) % mod) % mod; c[a[i]] += sum(a[i]) * (n - i + 1); add(a[i], i); } init(); for (int i = n; i >= 1; i--) { ans = (ans + 1LL * b[a[i]] * sum(a[i]) % mod * i % mod) % mod; c[a[i]] += sum(a[i]) * i; add(a[i], n - i + 1); } for (int i = 1; i <= n; i++) { ans = (ans + 1LL * b[a[i]] * i % mod * (n - i + 1) % mod) % mod; c[a[i]] += i * (n - i + 1); } printf( %d n , ans); return 0; } |
#include<bits/stdc++.h> // #define int long long #define ld long double #define fi first #define se second #define vll vector<int> #define pii pair<int,int> #define pb push_back #define sz(v) (int)(v).size() #define inf (int)(1e8) #define md (int)(1e9+7) #define all(v) (v).begin(),(v).end() #define rep(i,a,b) for(int i=a;i<b;++i) using namespace std; const int M = 50 + 11; const int K = 251; int n; string s; int dp[2][M][K][K]; /* int f(int i,int car,int pos,int neg) { if(pos<0 or neg<0 or car+30>=M or car+30<0) return inf; if(i>=n) return car?inf:0; if(dp[i][car+30][pos][neg]!=-1) return dp[i][car+30][pos][neg]; int ans=min(f(i,car,pos-1,neg),f(i,car,pos,neg-1)); int now=s[i]- 0 ,tot=pos-neg+car; if((tot%10+10)%10==now) { ans=min(ans,f(i+1,tot/10+(tot>0?0:-1)*(bool)(tot%10),pos,neg)+pos+neg); } return dp[i][car+30][pos][neg]=ans; } */ int32_t main(){ ios_base::sync_with_stdio(false); cin.tie(0); cin>>s; reverse(all(s)); s+= 0 ; n=sz(s); rep(i,0,2)rep(car,0,M)rep(pos,0,K)rep(neg,0,K) dp[i][car][pos][neg]=inf; rep(pos,0,K)rep(neg,0,K) dp[0][0+M/2][pos][neg]=0; for(int i=n-1;i>=0;--i) { rep(car,-M/2,M/2+1)rep(pos,0,K)rep(neg,0,K) { int &ans=dp[1][car+M/2][pos][neg]; if(pos) ans=min(ans,dp[1][car+M/2][pos-1][neg]); if(neg) ans=min(ans,dp[1][car+M/2][pos][neg-1]); int now=s[i]- 0 ,tot=pos-neg+car; if((tot%10+10)%10==now) { int ncar=tot/10+(tot>0?0:-1)*(bool)(tot%10)+M/2; if(ncar<0 or ncar>=M) continue; ans=min(ans,dp[0][ncar][pos][neg]+pos+neg); } } rep(car,-M/2,M/2+1)rep(pos,0,K)rep(neg,0,K) { dp[0][car+M/2][pos][neg]=dp[1][car+M/2][pos][neg]; dp[1][car+M/2][pos][neg]=inf; } } cout<<dp[0][0+M/2][K-1][K-1]; /* memset(dp,-1,sizeof(dp)); cout<<f(0,0,K-1,K-1); */ return 0; } |
#include <bits/stdc++.h> using namespace std; long long mx, mx2; void solve(long long m, long long blocks, long long sum) { if (m == 0) { if (blocks > mx) { mx = blocks; mx2 = sum; } else if (blocks == mx && sum > mx2) { mx2 = sum; } return; } long long x = 1; while ((x + 1) * (x + 1) * (x + 1) <= m) x++; solve(m - x * x * x, blocks + 1, sum + x * x * x); solve(x * x * x - 1 - (x - 1) * (x - 1) * (x - 1), blocks + 1, sum + (x - 1) * (x - 1) * (x - 1)); } int main() { long long m; cin >> m; solve(m, 0, 0); cout << mx << << mx2 << endl; return 0; } |
#include <bits/stdc++.h> using namespace std; int num[300]; int main() { int n, a, minn = 99999, sum = 0, sum2 = 0; scanf( %d , &n); for (int i = 1; i <= n; i++) scanf( %d , &num[i]); for (int i = 1; i <= n; i++) sum += abs(num[i]); printf( %d n , sum); return 0; } |
#include <bits/stdc++.h> using namespace std; signed main() { ios_base::sync_with_stdio(false); cin.tie(0); long long t, n, m; cin >> t; while (t--) { cin >> n >> m; if (n == 1 || m == 1 || (n == 2 && m == 2)) { cout << YES << endl; } else { cout << NO << endl; } } } |
#include <bits/stdc++.h> #pragma GCC optimize( Ofast ) #pragma GCC target( sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,avx2,fma ) #pragma GCC optimize( unroll-loops ) using namespace std; const double eps = 1e-12; const long long MOD = 1e9 + 7; const double PI = acos(-1.0); const long long INF = 1e18; void solve() { long long n, m, k; cin >> n >> m >> k; vector<long long> a(n); for (long long i = 0; i < n; i++) { cin >> a[i]; } vector<long long> pref(n + 1, 0); pref[1] = a[0]; for (long long i = 2; i <= n; i++) { pref[i] = pref[i - 1] + a[i - 1]; } vector<long long> sums(n + 1, 0); for (long long i = 0; i + m <= n; i++) { sums[i] = pref[i + m] - pref[i]; } long long dp[n + 1][k + 1]; memset(dp, 0, sizeof(dp)); for (long long i = 0; i <= n; i++) { for (long long j = 1; j <= k; j++) { if (i < j - 1) continue; dp[i][j] = max(((i - m >= 0) ? dp[i - m][j - 1] : 0) + sums[i], ((i - 1 >= 0) ? dp[i - 1][j] : 0)); } } long long ans = 0; for (long long i = 0; i <= n; i++) { ans = max(dp[i][k], ans); } cout << ans << n ; } int main() { ios_base::sync_with_stdio(false); cin.tie(NULL); ; long long t = 1; while (t--) { solve(); } return 0; } |
#include <bits/stdc++.h> using namespace std; int main() { int a, b, c, d; cin >> a >> b >> c >> d; int k = a + b + c + d; if (k % 2 == 0) { if (a + b == k / 2 || a + c == k / 2 || a + d == k / 2 || b + c == k / 2 || b + d == k / 2 || c + d == k / 2 || a + b + c == k / 2 || a + b + d == k / 2 || a + c + d == k / 2 || b + c + d == k / 2) cout << YES n ; else cout << NO n ; } else cout << NO n ; return 0; } |
#include <bits/stdc++.h> using namespace std; const int MAXN = 510; const int MAXQ = 100010; const double EPS = 1e-10; const double DINF = 1e30; const int IINF = ~0U >> 3; const long long LINF = 1LL << 61; void debug() { cout << error_here << endl; } char str[MAXN][MAXN]; int a[MAXN][MAXN], b[MAXN][MAXN]; int n, m, k; void init() { scanf( %d%d%d , &n, &m, &k); for (int i = 0; i < n; ++i) scanf( %s , str[i]); memset(a, 0, sizeof(a)); memset(b, 0, sizeof(b)); for (int i = 1; i <= n; ++i) for (int j = 1; j <= m; ++j) a[i][j] = (str[i - 1][j - 1] == 1 ); for (int i = 1; i <= n; ++i) for (int j = 1; j <= m; ++j) if (a[i][j] && a[i - 1][j] && a[i + 1][j] && a[i][j - 1] && a[i][j + 1]) b[i][j] = 1; for (int i = 1; i <= n; ++i) for (int j = 1; j <= m; ++j) b[i][j] += b[i - 1][j] + b[i][j - 1] - b[i - 1][j - 1]; } int get_sum(int x, int y, int xx, int yy) { return b[xx][yy] - b[xx][y - 1] - b[x - 1][yy] + b[x - 1][y - 1]; } void solve() { long long ans = 0; for (int u = 1; u <= n; ++u) for (int v = u + 2; v <= n; ++v) { for (int i = 1, j = 3; i <= m && j <= m;) { if (get_sum(u + 1, i + 1, v - 1, j - 1) >= k) ans += m - j + 1, i++; else j++; } } cout << ans << endl; } int main() { init(); solve(); return 0; } |
#include <bits/stdc++.h> using namespace std; long long int comp(pair<long long int, long long int> a, pair<long long int, long long int> b) { if (a.first != b.first) return a < b; return a.second < b.second; } int main() { ios_base::sync_with_stdio(false); cin.tie(NULL); long long int n; cin >> n; vector<pair<long long int, long long int>> v; for (long long int i = 0; i < n; i++) { long long int x, y; cin >> x >> y; x += 1000; y += 1000; v.push_back({x, y}); } sort(v.begin(), v.end(), comp); long long int cnt = 0; for (long long int i = 0; i < n; i++) { for (long long int j = i + 1; j < n; j++) { if (((((v[i].first + v[j].first)) % 2 == 0) && (((v[i].second + v[j].second)) % 2 == 0))) { long long int x1, y1; x1 = (v[i].first + v[j].first) / 2; y1 = (v[i].second + v[j].second) / 2; long long int lo = i + 1, hi = j - 1, id = -1; while (lo <= hi) { long long int mid = (lo + hi) / 2; if (v[mid].first >= x1) { id = mid; hi = mid - 1; } else if (v[mid].first < x1) lo = mid + 1; } if (id != -1) { while (v[id].first == x1 && id < n) { if (v[id].second == y1) { cnt++; break; } id++; } } } } } cout << cnt; } |
#include <bits/stdc++.h> using namespace std; const int mx = 1e5 + 10; int p[mx]; int main() { int n; cin >> n; if (n % 4 > 1) { puts( -1 ); return 0; } int l = 1, r = n; while (l < r) { p[l] = l + 1; p[l + 1] = r; p[r] = r - 1; p[r - 1] = l; l += 2; r -= 2; } if (l == r) p[l] = l; for (int i = 1; i <= n; i++) printf( %d , p[i]); puts( ); return 0; } |
#include <bits/stdc++.h> using namespace std; long long int power(long long int a, long long int b) { long long int res = 1; a %= 1000000007; assert(b >= 0); for (; b; b >>= 1) { if (b & 1) res = res * a % 1000000007; a = a * a % 1000000007; } return res; } long long int modInverse(long long int a) { return power(a, 1000000007 - 2); } long long int gcd(long long int a, long long int b) { if (b == 0) return a; a %= b; return gcd(b, a); } const int N = 500023; bool vis[N]; vector<int> adj[N]; void solve() { int n; cin >> n; vector<long long int> a(n + 1); for (long long int i = 0; i < n; i++) cin >> a[i + 1]; int moves = 1; long long int by_ana = 0; long long int by_bob = 0; int prev_a = 1; int prev_b = n + 1; by_ana += a[1]; int to_comp_by_bob = a[1]; int to_comp_by_ana = 0; int turn = 2; int f = 0; int eaten[n + 1]; for (int i = 1; i <= n; i++) eaten[i] = 0; eaten[1] = 1; while (1) { moves++; int temp = 0; if (prev_a == prev_b - 1 || prev_a > n || prev_b < 1) { moves--; break; } if (turn == 2) { while (temp <= to_comp_by_bob) { if (prev_b == prev_a || prev_b < 1) { f = 1; break; } prev_b--; if (eaten[prev_b] == 1) { f = 1; break; } temp += a[prev_b]; by_bob += a[prev_b]; eaten[prev_b] = 1; } to_comp_by_ana = temp; turn = 1; if (f == 1) break; } else if (turn == 1) { while (temp <= to_comp_by_ana) { if (prev_b == prev_a || prev_a > n) { f = 1; break; } prev_a++; if (eaten[prev_a] == 1) { f = 1; break; } temp += a[prev_a]; by_ana += a[prev_a]; eaten[prev_a] = 1; } if (f == 1) break; to_comp_by_bob = temp; turn = 2; } if (f == 1) { if (temp == 0) moves--; break; } } if (n == 1) moves = 1; cout << moves << << by_ana << << by_bob << endl; } int main() { ios_base::sync_with_stdio(false); cin.tie(NULL); int T = 1; cin >> T; int t = 0; while (t++ < T) { solve(); } cerr << Time : << 1000 * ((double)clock()) / (double)CLOCKS_PER_SEC << ms n ; } |
#include <bits/stdc++.h> using namespace std; long long int pp(long long int a, long long int b) { if (b == 0) return 1; long long int t = pp(a, b / 2); if (b % 2 == 0) return t * t; else return t * t * a; } string ss(string s, long long int j) { for (long long int i = 0; i < j; i++) { if (s[i] == 0 ) s[i] = 1 ; else s[i] = 0 ; } long long int l = 0, r = j - 1; while (l < r) { swap(s[l], s[r]); l++; r--; } return s; } int main() { ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL); ; long long int q; cin >> q; while (q--) { long long int i, j, k, n, m, x, y, l, r, c = 0; string s, s1, s2 = ; cin >> n; cin >> s >> s1; vector<long long int> v; for (i = n - 1; i > 0; i--) { if (s[i] == s1[i]) continue; else { if ((s1[i] == 0 && s[i] == 1 && s[0] == 1 ) || (s1[i] == 1 && s[i] == 0 && s[0] == 0 )) { v.push_back(i + 1); s = ss(s, i + 1); } else if (s1[i] == 0 && s[i] == 1 && s[0] == 0 ) { v.push_back(1); s[0] = 1 ; v.push_back(i + 1); s = ss(s, i + 1); } else { v.push_back(1); s[0] = 0 ; v.push_back(i + 1); s = ss(s, i + 1); } } } if (s[0] != s1[0]) v.push_back(1); cout << v.size() << ; for (i = 0; i < v.size(); i++) cout << v[i] << ; cout << endl; } } |
#include <bits/stdc++.h> #pragma comment(linker, /STACK:66777216 ) using namespace std; static unsigned rnd() { static int second = 124612741; second ^= second << 13; second ^= second >> 17; return second ^= second << 5; } inline int fpow(int a, int st, int mod) { int ans = 1; while (st) { if (st % 2) ans = (long long)ans * a % mod; a = (long long)a * a % mod; st /= 2; } return ans; } int invmod(int first, int second) { int a = 1, b = 0, k; for (; second; swap(first, second), swap(a, b)) { k = first / second; first -= second * k; a -= b * k; } return a + max(b, 0); } inline int calcBits(int a) { return __builtin_popcount(a); } struct Hash { Hash() : x1(0), x2(0) {} Hash(const int& x1, const int& x2) : x1(x1), x2(x2) {} int x1, x2; static int mod1, mod2; static int p1, p2; static int invp1, invp2; static bool initCalled; static const Hash ONE, ZERO, INVALID; static Hash UNIT, INV_UNIT; static bool prime(int a) { if (a == 1) return 0; for (int i = 2; i * i <= a; ++i) { if (a % i == 0) return false; } return true; } static int pickModHelper(int start, int bad) { int mn = 1000000000, best = -1; for (int _n(start + 10000), i(start); i <= _n; i++) { if (i == bad || !prime(i)) continue; int cur = calcBits(i); if (cur < mn) { mn = cur; best = i; } } return best; } static void init() { if (initCalled) return; initCalled = true; mod1 = pickModHelper(1000000000 + rnd() % 10000000, -1); while (!prime(mod1)) ++mod1; mod2 = pickModHelper(1000000000 + rnd() % 10000000, mod1); invp1 = fpow(p1, mod1 - 2, mod1); invp2 = fpow(p2, mod2 - 2, mod2); INV_UNIT = Hash(invp1, invp2); } inline Hash& operator+=(const Hash& other) { x1 += other.x1; if (x1 >= Hash::mod1) x1 -= Hash::mod1; x2 += other.x2; if (x2 >= Hash::mod2) x2 -= Hash::mod2; return *this; } inline Hash& operator-=(const Hash& other) { x1 -= other.x1; if (x1 < 0) x1 += Hash::mod1; x2 -= other.x2; if (x2 < 0) x2 += Hash::mod2; return *this; } inline Hash& operator*=(const Hash& other) { x1 = (long long)x1 * other.x1 % Hash::mod1; x2 = (long long)x2 * other.x2 % Hash::mod2; return *this; } inline Hash& operator*=(const int& other) { x1 = (long long)x1 * other % Hash::mod1; x2 = (long long)x2 * other % Hash::mod2; return *this; } inline Hash& operator^=(const int& power) { int st = power; Hash ans(1, 1); while (st) { if (st % 2) ans *= *this; x1 = (long long)x1 * x1 % Hash::mod1; x2 = (long long)x2 * x2 % Hash::mod2; st /= 2; } return *this; } inline bool operator==(const Hash& other) const { return x1 == other.x1 && x2 == other.x2; } }; bool Hash::initCalled = false; int Hash::mod1 = 0; int Hash::mod2 = 0; int Hash::p1 = 23561; int Hash::p2 = 10000019; int Hash::invp1 = -1; int Hash::invp2 = -1; const Hash Hash::ONE(1, 1); const Hash Hash::ZERO(0, 0); const Hash Hash::INVALID(-1, -1); Hash Hash::UNIT(Hash::p1, Hash::p2); Hash Hash::INV_UNIT(-1, -1); inline Hash operator+(const Hash& a, const Hash& b) { Hash ans(a.x1 + b.x1, a.x2 + b.x2); if (ans.x1 >= Hash::mod1) ans.x1 -= Hash::mod1; if (ans.x2 >= Hash::mod2) ans.x2 -= Hash::mod2; return ans; } inline Hash operator-(const Hash& a, const Hash& b) { Hash ans(a.x1 - b.x1, a.x2 - b.x2); if (ans.x1 < 0) ans.x1 += Hash::mod1; if (ans.x2 < 0) ans.x2 += Hash::mod2; return ans; } inline Hash operator*(const Hash& a, const Hash& b) { return Hash((long long)a.x1 * b.x1 % Hash::mod1, (long long)a.x2 * b.x2 % Hash::mod2); } inline Hash operator*(const Hash& a, const int& b) { return Hash((long long)a.x1 * b % Hash::mod1, (long long)a.x2 * b % Hash::mod2); } inline Hash operator^(const Hash& a, const int& power) { int st = power; Hash ans(1, 1), cur(a); while (st) { if (st % 2) ans *= cur; cur *= cur; st /= 2; } return ans; } inline Hash fpow(const Hash& a, const int& power) { return a ^ power; } inline Hash invmod(const Hash& a) { return Hash(invmod(a.x1, Hash::mod1), invmod(a.x2, Hash::mod2)); } template <class H> struct HashString : public string { HashString() : string() { precalc(0); } HashString(const HashString& other) : string(other) { precalc(size()); } HashString(HashString&& other) : hh(std::move(other.hh)), string(std::move(other)) { precalc(size()); } HashString(const string& other) : string(other) { precalc(size()); build(); } HashString(string&& other) : string(std::move(other)) { precalc(size()); build(); } HashString(const char* other) : string(other) { precalc(size()); build(); } inline void clear() { hh.clear(); string::clear(); } inline static H getPow(int p) { if (p < haveN) { return pp[p]; } else { return fpow(H::UNIT, p); } } inline static H getInvPow(size_t p) { if (p < invpp.size()) { return invpp[p]; } else { return fpow(H::INV_UNIT, p); } } inline H getInvRegister(const H& p) const { if (p == register_) { return registerValue_; } else { register_ = p; return registerValue_ = invmod(p); } } static void precalc(int N = 0) { Hash::init(); if (haveN >= N) return; pp.resize(N); invpp.resize(N); if (!haveN) { pp[0] = H::ONE; invpp[0] = H::ONE; haveN = 1; } for (int i = haveN; i < N; ++i) { pp[i] = pp[i - 1] * H::UNIT; invpp[i] = invpp[i - 1] * H::INV_UNIT; } haveN = N; } inline void build() { int curSize = size(); if (haveN <= curSize) { precalc(curSize); } for (int i = hh.size(); i < curSize; ++i) { H pr = i ? hh.back() : H::ZERO; hh.push_back(pr + getPow(i) * (*this)[i]); } } inline H getHash(int pos, int len) const { if (len <= 0) return H::ZERO; const int S = size(); if (pos + len - 1 < S) { H ans = hh[pos + len - 1]; if (pos) { ans -= hh[pos - 1]; ans *= getInvPow(pos); } return ans; } else { H head = hh.back(); if (pos) { head -= hh[pos - 1]; head *= getInvPow(pos); } int full = -1, en = -1; H mid = H::ZERO; int midlen = 0; if (len <= S) { en = pos + len - 1 - S; H tail = hh[en]; full = 0; return head + tail * getPow(S - pos); } else { en = (pos + len - 1) % S; H tail = hh[en]; full = (len - (S - pos) - (en + 1)) / S; mid = hh.back() * (H::ONE - getInvPow(full * S)) * getInvRegister(H::ONE - getInvPow(S)); return head + mid * getPow(S - pos) + tail * getPow(len - (en + 1)); } } } inline HashString& operator+=(const char& ch) { string::operator+=(ch); build(); return *this; } inline HashString& operator+=(const HashString& other) { string::operator+=(other); build(); return *this; } inline bool operator==(const HashString& other) const { return hh.back() == other.hh.back(); } inline bool operator<(const HashString& other) const { int s1 = size(); int s2 = other.size(); const int S = min(s1, s2); int l = 0, r = S + 1; while (r - l > 1) { int xx = (r + l) / 2; if (getHash(0, xx) == other.getHash(0, xx)) l = xx; else r = xx; } char c1 = 0, c2 = 0; if (l < s1) c1 = (*this)[l]; if (l < s2) c2 = other[l]; return c1 < c2; } inline bool operator<=(const HashString& other) const { return (*this == other) || (*this < other); } inline bool operator>(const HashString& other) const { return !(*this == other) && !(*this < other); } inline bool operator>=(const HashString& other) const { return !(*this < other); } inline bool operator!=(const HashString& other) const { return !(*this == other); } inline void reserve(int N) { hh.reserve(N); string::reserve(N); } vector<H> hh; static vector<H> pp, invpp; private: mutable H register_, registerValue_; static int haveN; }; template <> int HashString<Hash>::haveN = 0; template <> vector<Hash> HashString<Hash>::pp = vector<Hash>(); template <> vector<Hash> HashString<Hash>::invpp = vector<Hash>(); template <class H, bool cyclic = true> struct HashStringPiece { explicit HashStringPiece(const HashString<H>& s, int pos, int len) : s(s), pos(pos), len(len), hash(H::INVALID) {} inline H getHash() const { if (hash == H::INVALID) hash = s.getHash(pos, len); return hash; } inline H getPartialHash(int needLen) const { return s.getHash(pos, needLen); } inline char getChar(int i) const { i += pos; const int S = s.size(); if (i < S) return s[i]; if (!cyclic) return 0; i -= S; if (i < S) return s[i]; return s[i % S]; } const HashString<H>& s; const int pos, len; mutable H hash; }; template <class H, class T> char getHSPRangeChar(T beg, T en, int pos) { for (T it = beg; it != en; ++it) { if (pos < it->len) { return it->getChar(pos); } pos -= it->len; } return 0; } template <class H, class T> H getHSPRangeHash(T beg, T en, int len) { H ans = H::ZERO; int cur = 0; for (T it = beg; it != en; ++it) { if (len >= it->len) { ans += it->getHash() * it->s.getPow(cur); cur += it->len; len -= it->len; } else { ans += it->getPartialHash(len) * it->s.getPow(cur); break; } } return ans; } int TB, IT; template <class H, class T> inline int compareHSPRanges(T beg1, T en1, int len1, T beg2, T en2, int len2) { if (beg1 == en1 && beg2 == en2) return 0; if (beg1 == en1) return -1; if (beg2 == en2) return 1; int l = 0, r = min(len1, len2) + 1; while (r - l > 1) { int xx = (r + l) / 2; auto h1 = getHSPRangeHash<H, T>(beg1, en1, xx); auto h2 = getHSPRangeHash<H, T>(beg2, en2, xx); if (h1 == h2) l = xx; else r = xx; } char c1 = getHSPRangeChar<H, T>(beg1, en1, l); char c2 = getHSPRangeChar<H, T>(beg2, en2, l); if (c1 < c2) return -1; else if (c1 == c2) return 0; else return 1; } template <class H, class T> inline int compareHSPRanges(T beg1, T en1, T beg2, T en2) { int len1 = 0; for (T it = beg1; it != en1; ++it) { len1 += it->len; } int len2 = 0; for (T it = beg2; it != en2; ++it) { len2 += it->len; } return compareHSPRanges<H, T>(beg1, en1, len1, beg2, en2, len2); } int a, b, c, d, n, m, k; char str[1000002]; int bal[2000002]; HashString<Hash> s; inline string build(pair<pair<int, int>, int> a) { string ans = ; for (int _n((a.first.first) - 1), i(0); i <= _n; i++) ans += ( ; for (int _n((n)-1), i(0); i <= _n; i++) { int cur = a.second + i; if (cur >= n) cur -= n; ans += str[cur]; } for (int _n((a.first.second) - 1), i(0); i <= _n; i++) ans += ) ; return ans; } HashString<Hash> op, cl; inline bool better(pair<pair<int, int>, int> a, pair<pair<int, int>, int> b, const HashString<Hash>& s) { HashStringPiece<Hash> A[3] = {HashStringPiece<Hash>(op, 0, a.first.first), HashStringPiece<Hash>(s, a.second, n), HashStringPiece<Hash>(cl, 0, a.first.second)}; HashStringPiece<Hash> B[3] = {HashStringPiece<Hash>(op, 0, b.first.first), HashStringPiece<Hash>(s, b.second, n), HashStringPiece<Hash>(cl, 0, b.first.second)}; int t = compareHSPRanges<Hash>(A, A + 3, B, B + 3); if (t == -1) return 1; else return 0; } int main() { gets(str); n = (int)strlen(str); HashString<Hash> s(str); HashString<Hash>::precalc(2 * n + 1); op.reserve(n + 1); cl.reserve(n + 1); for (int _n((n)-1), i(0); i <= _n; i++) { op += ( ; cl += ) ; } c = 0; for (int _n((n)-1), i(0); i <= _n; i++) { if (str[i] == ( ) ++c; else --c; } bal[0] = 0; for (int _n((2 * n) - 1), i(0); i <= _n; i++) { if (i) bal[i] = bal[i - 1]; int cur = i; if (i >= n) cur = i - n; if (str[cur] == ( ) ++bal[i]; else --bal[i]; } int blen = 1000000000; pair<pair<int, int>, int> best = make_pair(make_pair(0, 0), 0); stack<pair<int, int> > s1, s2; for (int _n((n)-1), i(0); i <= _n; i++) { int new_element = bal[i]; int minima = s1.empty() ? new_element : min(new_element, s1.top().second); s1.push(make_pair(new_element, minima)); } for (int _n((n)-1), cyc(0); cyc <= _n; cyc++) { int current_minimum = -1000000000; if (s1.empty() || s2.empty()) current_minimum = s1.empty() ? s2.top().second : s1.top().second; else current_minimum = min(s1.top().second, s2.top().second); int p = 0; if (cyc) p = bal[cyc - 1]; int mn = current_minimum - p; int beg = max(0, -mn); int en = c + beg; int len = beg + en + n; if (len < blen || (len == blen && better(make_pair(make_pair(beg, en), cyc), best, s))) { blen = len; best = make_pair(make_pair(beg, en), cyc); } if (s2.empty()) { while (!s1.empty()) { int element = s1.top().first; s1.pop(); int minima = s2.empty() ? element : min(element, s2.top().second); s2.push(make_pair(element, minima)); } } s2.pop(); int new_element = bal[cyc + n]; int minima = s1.empty() ? new_element : min(new_element, s1.top().second); s1.push(make_pair(new_element, minima)); } string ans = build(best); printf( %s n , ans.c_str()); } |
#include <bits/stdc++.h> using namespace std; template <typename A> ostream &operator<<(ostream &cout, vector<A> const &v); template <typename A, typename B> ostream &operator<<(ostream &cout, pair<A, B> const &p) { return cout << ( << p.first << , << p.second << ) ; } template <typename A> ostream &operator<<(ostream &cout, vector<A> const &v) { cout << [ ; for (int i = 0; i < v.size(); i++) { if (i) cout << , ; cout << v[i]; } return cout << ] ; } template <typename A, typename B> istream &operator>>(istream &cin, pair<A, B> &p) { cin >> p.first; return cin >> p.second; } mt19937_64 rng(std::chrono::steady_clock::now().time_since_epoch().count()); void usaco(string filename) { freopen((filename + .in ).c_str(), r , stdin); freopen((filename + .out ).c_str(), w , stdout); } const long double pi = 3.14159265358979323846; const long long mod = 1000000007; struct dsu { int n; vector<int> sizes, marks; vector<vector<int>> graph; void init(int rn) { n = rn; sizes = vector<int>(n); fill(sizes.begin(), sizes.end(), 1); marks = vector<int>(n); for (int i = 0; i < n; i++) marks[i] = i; graph = vector<vector<int>>(n); } void mark(int m, int node) { if (marks[node] == m) return; marks[node] = m; for (int i : graph[node]) mark(m, i); } bool merge(int a, int b) { if (marks[a] == marks[b]) return 0; graph[a].push_back(b); graph[b].push_back(a); if (sizes[marks[a]] > sizes[marks[b]]) swap(a, b); sizes[marks[b]] += sizes[marks[a]]; sizes[marks[a]] = 0; mark(marks[b], a); return 1; } int find(int n) { return marks[n]; } }; long long n, m, k, q, l, r, x, y, z; const long long template_array_size = 1e6 + 6884; long long a[template_array_size]; long long b[template_array_size]; long long c[template_array_size]; string second, t; long long ans = 0; pair<long long, pair<long long, long long>> vals[200005]; long long root[100005]; bool cnt[100005]; dsu d; void solve(int tc = 0) { cin >> m >> n; for (long long i = 0; i < m; i++) cin >> a[i]; for (long long i = 0; i < n; i++) cin >> b[i]; long long ans = 0, second = 0; for (long long i = 0; i < m; i++) { cin >> x; for (long long j = 0; j < x; j++) { cin >> y; --y; ans += a[i] + b[y]; vals[second++] = make_pair(-a[i] - b[y], make_pair(i, y)); } } sort(vals, vals + second); memset(cnt, 0, sizeof(cnt)); d.init(n); for (long long i = 0; i < second; i++) { long long a = vals[i].second.first, b = vals[i].second.second, val = vals[i].first; if (!cnt[a]) { cnt[a] = 1; root[a] = b; ans += val; } else { if (d.merge(root[a], b)) ans += val; } } cout << ans << n ; } int main() { { ios_base::sync_with_stdio(false); } { cin.tie(NULL); } cout << setprecision(12) << fixed; int tc = 1; for (int t = 0; t < tc; t++) solve(t); } |
#include <bits/stdc++.h> using namespace std; FILE *in; FILE *out; const int MAX = 1048576; const int TREE = 2097152; const int MOD = 1000000007; int n; int a[MAX]; int tree[TREE]; bool seen[MAX]; int query(int idx1, int idx2) { idx1 += (TREE >> 1); idx2 += (TREE >> 1); if (idx1 == idx2) return tree[idx1]; int ret = 0; ret += tree[idx1]; if (ret >= MOD) ret -= MOD; int flag1 = !(idx1 & 1); idx1 >>= 1; ret += tree[idx2]; if (ret >= MOD) ret -= MOD; int flag2 = (idx2 & 1); idx2 >>= 1; while (idx1 != idx2) { if (flag1) { ret += tree[(idx1 << 1) + 1]; if (ret >= MOD) ret -= MOD; } if (flag2) { ret += tree[(idx2 << 1) + 0]; if (ret >= MOD) ret -= MOD; } flag1 = !(idx1 & 1); idx1 >>= 1; flag2 = (idx2 & 1); idx2 >>= 1; } return ret; } void update(int idx, int val) { idx += (TREE >> 1); while (idx) { tree[idx] += val; if (tree[idx] >= MOD) tree[idx] -= MOD; idx >>= 1; } } int main(void) { in = stdin; out = stdout; fscanf(in, %d , &n); for (int i = 0; i < n; i++) fscanf(in, %d , &a[i]); int ans = 0; memset(tree, 0, sizeof(tree)); for (int i = n - 1; i >= 0; i--) { int cur = ((long long)a[i] * (query(a[i], MAX - 1) + 1)) % MOD; ans += cur; if (ans >= MOD) ans -= MOD; int sub = query(a[i], a[i]); ans -= sub; if (ans < 0) ans += MOD; update(a[i], (cur - sub + MOD) % MOD); } fprintf(out, %d n , ans); return 0; } |
#include <bits/stdc++.h> int main() { int cnt = 0, f[4], i, j, x[200], y[200], n; scanf( %d , &n); for (i = 0; i < n; i++) { scanf( %d %d , &x[i], &y[i]); } for (i = 0; i < n; i++) { f[1] = 0; f[2] = 0; f[3] = 0; f[0] = 0; for (j = 0; j < n; j++) { if (j != i) { if (x[i] == x[j] && y[i] < y[j]) f[0] = 1; if (x[i] == x[j] && y[i] > y[j]) f[1] = 1; } } for (j = 0; j < n; j++) { if (j != i) { if (y[i] == y[j] && x[i] < x[j]) f[2] = 1; if (y[i] == y[j] && x[i] > x[j]) f[3] = 1; } } if (f[0] == 1 && f[1] == 1 && f[2] == 1 && f[3] == 1) { cnt++; } } printf( %d , cnt); } |
#include <bits/stdc++.h> using namespace std; template <class A, class B> ostream& operator<<(ostream& o, pair<A, B>& p) { return o << ( << p.first << , << p.second << ) ; } template <class T> ostream& operator<<(ostream& o, const vector<T>& v) { o << { ; for (typeof((v).begin()) it = (v).begin(); it != (v).end(); it++) o << *it << , ; return o << } ; } struct debugger { ostream& out; bool first; void start() { first = true; } debugger(ostream& out) : out(out) { start(); } void nl() { out << endl; start(); } template <class T> debugger& operator,(T& v) { if (first) first = false; else out << , ; out << v; return *this; } template <class T> debugger& operator,(pair<T*, int> arr) { out << { ; for (typeof((arr.second) - 1) i = (0); i <= ((arr.second) - 1); i++) { out << arr.first[i] << , ; } out << } ; return *this; } } dbg(cerr); long long pyra(long long n) { return (n + 1) * (n + 1); } long long incr(long long n) { return (n * (n + 1)) / 2; } long long f(long long x, long long y, long long step, long long n) { long long ret = 2 * pyra(step) - (2 * step + 1); if (x + step > n) { ret -= pyra(x + step - n - 1); } if (y + step > n) { ret -= pyra(y + step - n - 1); } if (x - step < 1) { ret -= pyra(1 - (x - step) - 1); } if (y - step < 1) { ret -= pyra(1 - (y - step) - 1); } if (step - 1 - (n - x) - (n - y) > 0) { ret += incr(step - 1 - (n - x) - (n - y)); } if (step - 1 - (n - x) - (y - 1) > 0) { ret += incr(step - 1 - (n - x) - (y - 1)); } if (step - 1 - (x - 1) - (y - 1) > 0) { ret += incr(step - 1 - (x - 1) - (y - 1)); } if (step - 1 - (x - 1) - (n - y) > 0) { ret += incr(step - 1 - (x - 1) - (n - y)); } return ret; } int main() { long long n, x, y, c, lo, hi; cin >> n >> x >> y >> c; lo = 0; hi = 1e9 + 10; {} while (lo < hi) { long long mid = (lo + hi) / 2; if (f(x, y, mid, n) < c) lo = mid + 1; else hi = mid; } cout << lo << endl; return 0; } |
#include <bits/stdc++.h> int minDig(uint64_t n) { int k = n % 10, min = k; n /= 10; while (n != 0) { k = n % 10; if (k <= min) min = k; n /= 10; } return min; } int maxDig(uint64_t n) { int k = n % 10, max = k; n /= 10; while (n != 0) { k = n % 10; if (k >= max) max = k; n /= 10; } return max; } int searchzero(uint64_t n) { while (n != 0) { if (n % 10 == 0) return 1; n /= 10; } return 0; } int main(void) { int t; uint64_t a, k; scanf( %d , &t); while (t--) { scanf( %llu %llu , &a, &k); for (uint64_t i = 1; i < k; i++) { a += (minDig(a) * maxDig(a)); if (searchzero(a) == 1) break; } printf( %llu n , a); } return 0; } |
#include <bits/stdc++.h> using namespace std; template <typename Arg1> void __f(const char* name, Arg1&& arg1) { std::cerr << name << : << arg1 << endl; } template <typename Arg1, typename... Args> void __f(const char* names, Arg1&& arg1, Args&&... args) { const char* comma = strchr(names + 1, , ); std::cerr.write(names, comma - names) << : << arg1 << | ; __f(comma + 1, args...); } bool findfxn(string a, string b) { size_t found = a.find(b); if (found != string::npos) return 1; else return 0; } long long int power(long long int a, long long int b) { if (b == 0) { return 1; } else if (b % 2 == 0) { return power(a * a, b / 2); } else { return a * power(a * a, (b - 1) / 2); } } void solve() { long long int n, p, k, z = 0; cin >> n >> p >> k; int a[n]; int sum[n + 10]; for (int i = 0; i < (n); i++) { cin >> a[i]; } sort(a, a + n); int i = 0; for (i = 0; i < n; i++) { if (i > 1) { sum[i] = sum[i - 2] + a[i]; } else sum[i] = a[i]; if (sum[i] > p) { break; } } cout << i << endl; return; } signed main() { std::ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0); long long int t = 1; cin >> t; while (t--) solve(); return 0; return 0; } |
#include <bits/stdc++.h> using namespace std; int a[10005][6], n, m; map<int, int> f[10005]; int power(int x, int y) { int s = 1; for (; y; y /= 2, x = 1ll * x * x % 1000000007) if (y & 1) s = 1ll * s * x % 1000000007; return s; } int main() { scanf( %d%d , &n, &m); for (int i = 2; i <= m; i++) for (int j = 1; j < i; j++) { a[i][++a[i][0]] = j; f[i][j] = f[j][i] = 1000000007 - 1; f[i][i]++; f[j][j]++; } for (int i = m + 1; i <= n; i++) { a[i][0] = m; for (int j = 1; j <= m; j++) { scanf( %d , &a[i][j]); f[i][a[i][j]] = f[a[i][j]][i] = 1000000007 - 1; f[i][i]++; f[a[i][j]][a[i][j]]++; } } int ans = 1; for (int i = n; i > 1; i--) { int t = power(f[i][i], 1000000007 - 2); ans = 1ll * ans * f[i][i] % 1000000007; for (int j = 1; j <= a[i][0]; j++) for (int k = 1; k <= a[i][0]; k++) (f[a[i][j]][a[i][k]] += 1000000007 - 1ll * f[a[i][j]][i] * f[i][a[i][k]] % 1000000007 * t % 1000000007) %= 1000000007; } printf( %d , ans); } |
#include<bits/stdc++.h> #define L(i, j, k) for(int i = (j), i##E = k; i <= i##E; i++) #define R(i, j, k) for(int i = (j), i##E = k; i >= i##E; i--) #define mkp make_pair #define pii pair<int, int> #define ll long long #define db double #define sz(a) a.size() #define x first #define y second #define vi vector<int> using namespace std; const int N = 1e4, M = 100, mod = 998244353; int m; struct Matrix { int f[M][M]; Matrix (int x = 1) { L(i, 1, m) L(j, 1, m) f[i][j] = (i == j ? x : 0); } } ; Matrix operator * (Matrix aa, Matrix bb) { Matrix res(0); L(i, 1, m) L(j, 1, m) L(k, 1, m) (res.f[i][j] += (ll) aa.f[i][k] * bb.f[k][j] % mod) %= mod; return res; } Matrix operator ^ (Matrix x, ll y) { Matrix res(1); for(; y; x = x * x, y >>= 1) if(y & 1) res = res * x; return res; } int n, nousex, otp, s[N], tot, v[N], sv[N], ns; ll a[N], p[N], mx, val, arr[N], sl[N], sr[N]; void calc(int l, int r) { ll mx = 0; p[l] = 0, tot = 0; L(i, l + 1, r) { sl[i] = (p[i - 1] + (a[i] < 0 ? -1 : 1)), p[i] = p[i - 1] + a[i], sr[i] = p[i]; if(sl[i] > sr[i]) swap(sl[i], sr[i]); mx = max(mx, p[i]); } if(val != mx) return; sl[l + 1] = 0; L(i, l + 1, r) arr[++tot] = sl[i] - 1, arr[++tot] = sl[i], arr[++tot] = sl[i] + 1, arr[++tot] = sr[i] - 1, arr[++tot] = sr[i], arr[++tot] = sr[i] + 1; sort(arr + 1, arr + tot + 1), tot = unique(arr + 1, arr + tot + 1) - arr - 1; m = r - l; memset(v, 0, sizeof(v)); v[1] = 1, arr[0] = -1; L(k, 1, tot) if(arr[k] <= mx) { Matrix G(0); L(i, l + 1, r) if(sl[i] <= arr[k - 1] + 1 && arr[k] <= sr[i]) { L(j, l + 1, i - 1) G.f[j - l][i - l] = 1; if(a[i] > 0) G.f[i - l][i - l] = 1; } G = G ^ (arr[k] - arr[k - 1]); L(i, 1, m) L(j, 1, m) (sv[j] += (ll) v[i] * G.f[i][j] % mod) %= mod; L(i, 1, m) v[i] = sv[i], sv[i] = 0; } L(i, 1, m) (ns += v[i]) %= mod; } void Main() { cin >> n >> nousex; L(i, 1, n) { cin >> a[i]; if(a[i]) a[++otp] = a[i]; } n = otp, otp = 0; L(i, 1, n) if((a[i] > 0 && a[i - 1] > 0) || (a[i] < 0 && a[i - 1] < 0)) a[otp] += a[i]; else a[++otp] = a[i]; n = otp; L(i, 1, n) mx += a[i], val = max(val, mx), mx = max(mx, 0ll); cout << val + 1 << ; if(val == 0) { int sum = 1; L(i, 1, n) (sum += abs(a[i]) % mod) %= mod; return cout << sum << n , void(); } int top = 0; mx = 0; L(i, 1, n) { mx += a[i]; if(mx < 0) s[++top] = i, mx = 0; } s[++top] = n + 1; L(i, 1, top) calc(s[i - 1], s[i] - 1); cout << ns << n ; } int main() { ios::sync_with_stdio(false); cin.tie(0); cout.tie(0); Main(); return 0; } |
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