func_code_string: /*       @uthor: Amit Kumar       user -->GitHub: drviruses ; CodeChef: dr_virus_ ; Codeforces: dr_virus_ ;AtCoder,Hackerearth,Hakerrank: dr_virus;   */   #include <bits/stdc++.h>   #include <chrono>   using namespace std;   using namespace std::chrono;   //#include <boost/multiprecision/cpp_int.hpp>   //namespace mp = boost::multiprecision;   //#define ln mp::cpp_int;   #define int      long long   #define double   long double   #define uint     unsigned long long   #define endl   n    #define all(vec) vec.begin(),vec.end()   int google_itr = 1;   #define google(x) cout<< Case # <<x<< :     #define pi 3.14159265358979323846264338327950L      vector<string> vec_splitter(string s) {           s +=  , ;           vector<string> res;           while(!s.empty()) {                   res.push_back(s.substr(0, s.find( , )));                   s = s.substr(s.find( , ) + 1);           }           return res;   }   void debug_out(   vector<string> __attribute__ ((unused)) args,   __attribute__ ((unused)) int idx,    __attribute__ ((unused)) int LINE_NUM) { cerr << endl; }    template <typename Head, typename... Tail>   void debug_out(vector<string> args, int idx, int LINE_NUM, Head H, Tail... T) {           if(idx > 0) cerr <<  ,  ; else cerr <<  Line(  << LINE_NUM <<  )  ;           stringstream ss; ss << H;           cerr << args[idx] <<   =   << ss.str();           debug_out(args, idx + 1, LINE_NUM, T...);   }      #define XOX   #ifdef XOX       #define deb(...) debug_out(vec_splitter(#__VA_ARGS__), 0, __LINE__, __VA_ARGS__)   #else       #define deb(...) 42   #endif         const int mod = 1e9+7;   const int inf = 1e18;         void virus(){           int n;           cin >> n;              vector <int> arr(n), seq(n);           for(auto &i:arr) cin >> i;           iota(all(seq), 0);              partial_sum(all(arr), arr.begin());           partial_sum(all(seq), seq.begin());              for(auto i=0; i<n; i++) {               if(arr[i] < seq[i]) {                   cout <<  NO n ; return;               }           }              cout <<  YES n ;   }         int32_t main(){       ios_base::sync_with_stdio(false);       cin.tie(0);       cout.tie(0);            /*#ifndef ONLINE_JUDGE       freopen( input.txt , r ,stdin);       freopen( output.txt , w ,stdout);       #endif*/          int t;       cin >> t;       while(t--){              auto start = system_clock::now();              virus();              auto stop = system_clock::now();              duration<double> duration = (stop - start);              //cerr <<   nTime:  << fixed << setprecision(10) << (double)duration.count() << sec << endl;              //your code goes here       }       return 0;   }