func_code_string: #include <bits/stdc++.h>   using namespace std;   string n;   int k;   int main() {     cin >> n >> k;     if (n[0] ==  0 ) {       cout << 0 << endl;       return 0;     }     int count = 0, c = 0;     for (int i = n.size() - 1; i >= 0; i--) {       count += (n[i] ==  0 );       c += (n[i] !=  0 );       if (count == k) {         cout << c << endl;         return 0;       }       if (i == 0) {         for (auto m : n)           if (m ==  0 ) {             cout << n.size() - 1 << endl;             return 0;           }       }     }   }   