func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int t;     cin >> t;     string str;     for (int o = 0; o < t; o++) {       cin >> str;       int n = str.length();       int pre = 0, suf = 0, total = 0;       if (str[0] ==  1 ) {         pre = 0;       } else {         pre = 1;         for (int i = 1; i < n; i++) {           if (str[i] ==  0 ) {             pre = pre + 1;           } else {             break;           }         }       }       if (str[n - 1] ==  1 ) {         suf = 0;       } else {         suf = 1;         for (int j = n - 2; j > 0; j--) {           if (str[j] ==  0 ) {             suf = suf + 1;           } else {             break;           }         }       }       for (int k = 0; k < n; k++) {         if (str[k] ==  0 ) {           total = total + 1;         }       }       int ans = total - suf - pre;       if (pre == total) {         cout <<  0  << endl;       } else {         cout << ans << endl;       }     }   }   