Function main

CodeChef_problems/WATMELON/solution.cpp:13–39

using namespace std;

int main() {
    ios_base::sync_with_stdio(false); // Speeds up the execution time
    cin.tie(NULL);

    lli t; // number of test cases
    cin >> t;

    while(t--) {
        lli n;
        cin >> n;

        lli sum = 0;
        lli num;

        for(int i = 0; i < n; i++) {
            cin >> num;
            sum += num;
        }

        if(sum >= 0)
            cout << "YES" << endl;
        else
            cout << "NO" << endl;
    }

    return 0;
}