func_code_string: //SAGAR SINGH   // #pragma GCC optimize( Ofast )   // #pragma GCC target( avx,avx2,fma )   // #pragma GCC optimization( unroll-loops )   #include<bits/stdc++.h>   using namespace std;   #define fastio ios_base::sync_with_stdio;cin.tie(NULL);cout.tie(0);   #define ll long long    #define ld long double    #define rep(i,a,b) for(ll i=a;i<b;i++) //rep(i,0,n)    #define repr(i,a,b) for(ll i=a;i>=b;i--)//repr(i,n-1,0)   #define repit(it,a) for(auto it=(a).begin();it!=(a).end();it++)//repr(i,n,0)   #define vll vector<long long>   #define vpl vector<pair<ll,ll> >   #define sll set<long long>   #define msll multiset<long long>   #define mll map<ll,ll>   #define mmll multimap<ll,ll>   #define all(x) x.begin(),x.end()   #define rall(x) x.rbegin(),x.rend()   #define get(x) getline(cin,x)   #define in(v) for(auto &x:v) cin>>x;   #define out(v) for(auto x:v) {cout<<x<<   ;} cout<<  n ;   #define str string   #define pb  push_back   #define ins insert   #define lb lower_bound   #define ub upper_bound   #define ff first   #define ss second   /*--- bit-stuff ----*/   #define setbits(a) ( __builtin_popcountll(a))   #define right(a) (__builtin_ctzll(a))   #define left(a) (__builtin_clzll(a))   #define parity(a) (__builtin_parityll(a))      #define TRACE   #ifdef TRACE   #define trace(...) __f(#__VA_ARGS__, __VA_ARGS__)       template <typename Arg1>       void __f(const char* name, Arg1&& arg1){           cout << name <<   :   << arg1 << endl;           //use cerr if u want to display at the bottom       }       template <typename Arg1, typename... Args>       void __f(const char* names, Arg1&& arg1, Args&&... args){           const char* comma = strchr(names + 1,  , ); cout.write(names, comma - names) <<   :   << arg1<<  |  ;__f(comma+1, args...);       }   #else   #define trace(...)   #endif         const ll mod = 1e9+7;   const ll N = 1e5+1;   const ll INF = 1e18;   const ll NINF = -1e18;         void solve(){      ll n;cin>>n;   vll v(n);in(v);      str s;   rep(i,0,n) s.pb( 0 );      ll cur=0;   ll i=n-1;      while(i>=0){    cur=max({cur,v[i],(ll)0});     if(cur>0) s[i]= 1 ;     else s[i]= 0 ;     i--;     cur--;   }      out(s);                     }      int main(){     ios_base::sync_with_stdio;     cin.tie(NULL);cout.tie(0);     ll t=1;     cin>>t;     while(t--)        solve();        return 0;   }   