func_code_string: #include <bits/stdc++.h>   using namespace std;   void solve() {     int a;     cin >> a;     int b[a];     for (int i = 0; i < a; i++) {       cin >> b[i];     }     int ind = 0;     for (int i = 0; i < a - 1; i++) {       if (b[i] > b[i + 1]) {         b[0] = b[0] - b[i] + b[i + 1];         if (b[0] < 0) {           cout <<  NO ;           return;         }       }     }     cout <<  YES ;   }   int main() {     int t;     cin >> t;     while (t--) {       solve();       cout << endl;     }   }   