func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int n, k;     cin >> n >> k;     n--;     k--;     int arr[n];     for (int i = 0; i < n; i++) cin >> arr[i];     int count = 0;     int flag = 0;     while (count <= k) {       if (count == k) {         flag = 1;         break;       }       count += arr[count];     }     if (flag == 1)       cout <<  YES  << endl;     else       cout <<  NO  << endl;     return 0;   }   