func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int x, y;     string s, t;     cin >> x >> y >> s >> t;     int arr[y - x + 1];     int mx = -1, res;     for (int i = 0; i < y - x + 1; i++) {       int k = i;       arr[i] = 0;       for (int j = 0; j < x; j++, k++) {         if (t[k] == s[j]) arr[i] += 1;       }       if (mx < arr[i]) {         mx = arr[i];         res = i;       }     }     cout << x - mx << endl;     for (int i = res, j = 0; j < x; i++, j++) {       if (t[i] != s[j]) cout << j + 1 <<    ;     }     return 0;   }   