func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int n;     cin >> n;     int a[n], b[n], c = 0, x = 0, y = 0, z = 0, s = 0;     for (int i = 0; i < n; i++) {       cin >> a[i];       if (a[i] == 1) {         x++;       }     }     for (int i = 0; i < n; i++) {       cin >> b[i];       if (a[i] != b[i]) {         c = 1;       }       if (b[i] == 1) {         y++;       }     }     for (int i = 0; i < n; i++) {       if (a[i] == 1 && b[i] == 0) {         z++;       }     }     if (c == 0 || x == 0 || z == 0) {       cout <<  -1  << endl;     } else {       for (int i = 1;;) {         if (s > y) {           cout << i - 1 << endl;           break;         } else {           s = z * i + (x - z);           i++;         }       }     }     return 0;   }   