func_code_string: #include <bits/stdc++.h>   using namespace std;   int n, m, q;   int nxt[100001];   char s[100001], t[100001];   int temp[100001];   int l, r;   bool check(int u) {     for (int i = 0; i < m; ++i) {       if (s[u + i] != t[i]) return 0;     }     return 1;   }   void pre_do() {     for (int i = 1; i <= n - m + 1; i++) {       temp[i] += check(i);     }   }   void putin() {     cin >> n >> m >> q;     scanf( %s%s , s + 1, t);   }   int main() {     putin();     pre_do();     for (int i = 1; i <= n; i++) {       temp[i] += temp[i - 1];     }     for (int i = 1; i <= q; i++) {       cin >> l >> r;       if (r - l + 1 < m)         cout << 0 << endl;       else         cout << temp[r - m + 1] - temp[l - 1] << endl;     }   }   