func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int a, b, x;     scanf( %d %d %d , &a, &b, &x);     if (a != 0 && a >= b) {       a = a - (a / b) * b;     }     a *= 10;     int cont = 0;     vector<int> v;     while (cont <= b && a != 0) {       if (a < b) {         v.push_back(0);       } else {         v.push_back(a / b);         a = a - (a / b) * b;       }       a *= 10;       cont++;     }     if (a == 0) v.push_back(0);     if (find(v.begin(), v.end(), x) != v.end()) {       printf( %d n , (find(v.begin(), v.end(), x) - v.begin()) + 1);     } else       puts( -1 );   }   