func_code_string: #include <bits/stdc++.h>   using namespace std;   using namespace std;   int main() {     int N;     cin >> N;     int suma = 0;     vector<int> a(N);     for (int i = 0; i < N; ++i) {       cin >> a[i];       suma += a[i];     }     if (suma == 1) {       cout << -1 << endl;     } else {       long long answer = LONG_LONG_MAX;       for (int tk = 2; tk <= suma; ++tk) {         if (suma % tk == 0) {           int currenti = 0;           long long cans = 0;           while (currenti < N) {             int currentsum = 0;             int median = -1;             int starti = currenti;             while (currentsum < tk) {               currentsum += a[currenti];               if (a[currenti] == 1 && currentsum == (tk + 1) / 2) {                 median = currenti;               }               currenti++;             }             long long steps = 0;             for (int i = starti; i < currenti; ++i) {               if (a[i] == 1) {                 steps += abs(median - i);               }             }             cans += steps;           }           answer = min(answer, cans);         }       }       cout << answer << endl;     }     return 0;   }   