func_code_string: #include <bits/stdc++.h>   template <typename Iter>   long long maxsum(Iter begin, Iter end) {     long long mins = 0, s = 0;     long long maxs = 0;     long long max = *begin;     while (begin != end) {       s += *begin;       max = std::max(max, *begin);       maxs = std::max(maxs, s - mins);       mins = std::min(mins, s);       ++begin;     }     return (maxs == 0 ? max : maxs);   }   int main() {     int t;     std::cin >> t;     for (int ti = 0; ti < t; ++ti) {       int n;       std::cin >> n;       std::vector<long long> a(n);       for (auto &e : a) std::cin >> e;       long long maxs = std::max(maxsum(a.begin(), a.end() - 1),                                 maxsum(a.begin() + 1, a.end()));       std::cout << (std::accumulate(a.begin(), a.end(), 0ll) > maxs ?  YES                                                                      :  NO )                 <<   n ;     }     return 0;   }   