func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     ios::sync_with_stdio(0);     cin.tie(0);     int n, a;     cin >> n >> a;     int arr[n + 1];     int cnt = 0;     for (int i = 1; i <= n; i++) {       cin >> arr[i];     }     for (int i = 1; i <= n; i++) {       if (arr[i]) {         int temp = i - a;         int d = a - temp;         if (d > n || d < 1 || arr[d] == arr[i]) cnt++;       }     }     cout << cnt;     return 0;   }   