func_code_string: #include <bits/stdc++.h>   using namespace std;   const int N = (int)1E5 + 5;   int MOD = (int)1E9 + 7;   namespace CHT {   struct cnode {     int s;     int e;     int ls;     int rs;     int res;   } nodes[N * 40];   void copy(int s, int d) {     nodes[d].s = nodes[s].s;     nodes[d].e = nodes[s].e;     nodes[d].ls = nodes[s].ls;     nodes[d].rs = nodes[s].rs;     nodes[d].res = nodes[s].res;   }   int roots[N << 1];   int allo = 0;   int build(int s, int e) {     if (s == e) {       nodes[allo] = {s, e, -1, -1, 0};       return allo++;     }     int m = s + e >> 1;     int temp = allo++;     int l = build(s, m);     int r = build(m + 1, e);     nodes[temp] = {s, e, l, r, 0};     return temp;   }   void add(int i, int pos, int val) {     roots[i] = allo++;     int c1 = roots[i - 1];     int c2 = roots[i];     while (1) {       copy(c1, c2);       nodes[c2].res += val;       if (nodes[c1].s == nodes[c1].e) break;       int m = nodes[c1].s + nodes[c1].e >> 1;       if (pos <= m) {         nodes[c2].ls = allo++;         c2 = nodes[c2].ls;         c1 = nodes[c1].ls;       } else {         nodes[c2].rs = allo++;         c2 = nodes[c2].rs;         c1 = nodes[c1].rs;       }     }   }   int query(int s, int e, int r) {     if (s == nodes[r].s && e == nodes[r].e) return nodes[r].res;     int m = nodes[r].s + nodes[r].e >> 1;     if (e <= m) {       return query(s, e, nodes[r].ls);     } else if (s >= m + 1) {       return query(s, e, nodes[r].rs);     } else {       int p1 = query(s, m, nodes[r].ls);       int p2 = query(m + 1, e, nodes[r].rs);       return p1 + p2;     }   }   }  // namespace CHT   using namespace CHT;   namespace fastIO {   void read(int &n) {     char ch =    ;     int q = 0, w = 1;     for (; (ch !=  - ) && ((ch <  0 ) || (ch >  9 )); ch = getchar())       ;     if (ch ==  - ) w = -1, ch = getchar();     for (; ch >=  0  && ch <=  9 ; ch = getchar()) q = q * 10 + ch - 48;     n = q * w;   }   void read(long long &n) {     char ch =    ;     long long q = 0, w = 1;     for (; (ch !=  - ) && ((ch <  0 ) || (ch >  9 )); ch = getchar())       ;     if (ch ==  - ) w = -1, ch = getchar();     for (; ch >=  0  && ch <=  9 ; ch = getchar()) q = q * 10 + ch - 48;     n = q * w;   }   void write(long long x) {     if (x == 0) {       putchar( 0 );       return;     }     if (x < 0) x = -x, putchar( - );     int d[21];     d[0] = 0;     while (x) d[++d[0]] = x % 10, x /= 10;     for (; d[0]; d[0]--) putchar(d[d[0]] +  0 );   }   };  // namespace fastIO   using namespace fastIO;   vector<int> vs[N];   void solve() {     int n, k, temp, q;     read(n);     read(k);     roots[0] = build(1, n);     for (int i = 1; i <= n; i++) {       read(temp);       vs[temp].push_back(i);       if (vs[temp].size() > k) {         add(2 * i - 1, vs[temp][vs[temp].size() - 1 - k], -1);       } else {         add(2 * i - 1, 1, 0);       }       add(2 * i, i, 1);     }     read(q);     int last = 0;     for (int i = 0; i < q; i++) {       int a, b;       read(a), read(b);       a = (last + a) % n + 1;       b = (last + b) % n + 1;       if (a > b) swap(a, b);       last = query(a, b, roots[2 * b]);       write(last);       printf(  n );     }   }   int main() {     solve();     return 0;   }   