func_code_string: #include<iostream>   using namespace std;   void func(int i,int arr[],int ans[]){    if(arr[i]>=i+1){     return ;    }    if(arr[i]==0){    ans[i]=0;        func(i-1,arr,ans);        return;   }    else{     int currpos=i;int destionation=i-(arr[i]-1);     while(currpos>=0){      if(currpos!=destionation){       if(arr[currpos]>=currpos+1)       return;       if(arr[currpos]!=0){       destionation=destionation>currpos-(arr[currpos]-1)?currpos-(arr[currpos]-1):destionation;}      }      else{       if(arr[currpos]>=currpos+1)       return;       if(arr[currpos]==0 or arr[currpos]==1){       func(currpos-1,arr,ans);return;       }       destionation=destionation>currpos-(arr[currpos]-1)?currpos-arr[currpos]+1:destionation;      }      currpos-=1;     }     return ;    }   }   int main(){    int t;cin>>t;    while(t--){     int n;cin>>n;int arr[n];int ans[n];for(int i=0;i<n;i++){      cin>>arr[i];ans[i]=1;     }     func(n-1,arr,ans);     for(int i=0;i<n;i++){      cout<<ans[i]<<   ;     }    }   }