func_code_string: #include <bits/stdc++.h>   using namespace std;   #pragma GCC optimize( Ofast,unroll-loops )   #pragma GCC target( avx,avx2,sse,sse2 )   template <class c>   struct rge {     c b, e;   };   template <class c>   rge<c> range(c i, c j) {     return rge<c>{i, j};   }   template <class c>   auto dud(c *x) -> decltype(cerr << *x, 0);   template <class c>   char dud(...);   struct debug {     template <class c>     debug &operator<<(const c &) {       return *this;     }   };   struct segment {     long long a, b;     int t;     int id;     segment(long long _a = 0, long long _b = 0, int _t = 0, int _id = 0) {       a = _a;       b = _b;       t = _t;       id = _id;     }   };   struct query {     long long a, b;     int t;     query(long long _a = 0, long long _b = 0, int _t = 0) {       a = _a;       b = _b;       t = _t;     }   };   const int MAXN = 51;   const int MAXM = 5e4 + 10;   vector<segment> segments;   vector<query> queries;   vector<int> gr[2 * MAXN * MAXM];   int t[2 * MAXN * MAXM];   int card[2 * MAXN * MAXM];   int no = 0;   vector<segment> rec(long long l, long long r, vector<segment> &segments) {     vector<segment> s;     if (!segments.size()) {       s.emplace_back(l, r, 1e9, no++);       return s;     }     if (segments.size() == 1 && segments[0].a == l && segments[0].b == r) {       s.emplace_back(l, r, segments[0].t, no++);       return s;     }     vector<segment> s_left;     vector<segment> s_right;     long long m = l + r >> 1;     for (auto &x : segments) {       if (x.b <= m) {         s_left.emplace_back(x);       } else if (x.a > m) {         s_right.emplace_back(x);       } else {         s_left.emplace_back(x.a, m, x.t);         s_right.emplace_back(m + 1, x.b, x.t);       }     }     auto ss_left = rec(l, m, s_left);     auto ss_right = rec(m + 1, r, s_right);     int long long = 0, rr = 0;     long long dif = m + 1 - l;     while (long long < ss_left.size() && rr < ss_right.size()) {       if ((ss_left[long long].a >= ss_right[rr].a - dif &&            ss_left[long long].a <= ss_right[rr].b - dif) ||           (ss_right[rr].a >= ss_left[long long].a + dif &&            ss_right[rr].a <= ss_left[long long].b + dif)) {         gr[ss_left[long long].id].emplace_back(ss_right[rr].id);         gr[ss_right[rr].id].emplace_back(ss_left[long long].id);       }       if (ss_left[long long].b <= ss_right[rr].b - dif) {         ++long long;       } else {         ++rr;       }     }     for (auto &x : ss_right) {       ss_left.emplace_back(x);     }     return ss_left;   }   int root(int x) { return x == t[x] ? x : t[x] = root(t[x]); }   void onion(int x, int y) {     if ((x = root(x)) == (y = root(y))) return;     if (card[x] < card[y]) swap(x, y);     t[y] = x;     card[x] += card[y];     return;   };   int main() {     ios::sync_with_stdio(false);     cin.tie(0);     cout.tie(0);     int n, m;     cin >> n >> m;     for (int i = 1; i <= m; ++i) {       string s;       long long a, b;       cin >> s >> a >> b;       if (s ==  ask ) {         queries.emplace_back(a, b, i);       } else {         segments.emplace_back(a, b, i, segments.size());       }     }     auto s = rec(0, (1ll << n) - 1, segments);     for (int i = 0; i < no; ++i) {       t[i] = i;       card[i] = 1;     }     reverse((queries).begin(), (queries).end());     vector<int> alive(no);     auto s_time = s;     sort((s_time).begin(), (s_time).end(),          [&](segment &a, segment &b) { return a.t > b.t; });     auto getSegment = [&](long long a) {       int ret = 0;       int l = 0, r = s.size() - 1;       while (l <= r) {         int m = l + r >> 1;         if (s[m].a <= a && s[m].b >= a) return s[m].id;         if (s[m].b < a) {           l = m + 1;         } else {           r = m - 1;         }       }       assert(false);       return -1;     };     int now = 0;     vector<int> ans;     for (auto &x : queries) {       while (now < s_time.size() && s_time[now].t >= x.t) {         alive[s_time[now].id] = 1;         for (auto &x : gr[s_time[now].id]) {           if (alive[x]) onion(root(s_time[now].id), root(x));         }         ++now;       }       ans.emplace_back(root(getSegment(x.a)) == root(getSegment(x.b)));     }     reverse((ans).begin(), (ans).end());     for (auto &x : ans) cout << x <<   n ;     return 0;   }   