func_code_string: #include <bits/stdc++.h>   using namespace std;   const int nMax = 200003;   int smen[nMax];   int main() {     cin.sync_with_stdio(false);     cin.tie(NULL);     int n, k, q, st, dr;     cin >> n >> k >> q;     int m = nMax - 3;     for (int i = 1; i <= n; i++) {       cin >> st >> dr;       smen[st]++;       smen[dr + 1]--;     }     for (int i = 1; i <= m; i++) {       smen[i] = smen[i - 1] + smen[i];     }     for (int i = 1; i <= m; i++) {       if (smen[i] >= k) {         smen[i] = 1;       } else {         smen[i] = 0;       }     }     for (int i = 1; i <= m; i++) {       smen[i] = smen[i - 1] + smen[i];     }     int x, y;     for (int i = 1; i <= q; i++) {       cin >> x >> y;       cout << smen[y] - smen[x - 1] <<   n ;     }     return 0;   }   