Code
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
int main(){
int t; cin>>t;
while(t--){
ll n; cin>>n;
vector<ll>s(n);
vector<ll>v;
for(int i=0;i<n;i++){
cin>>s[i];
}
sort(s.begin(),s.end());
for(int i=1;i<=n;i++){
v.push_back(i);
}
if(s==v) cout<<"YES\n";
else cout<<"NO\n";
}
}
Information
- Submit By
- Type
- Submission
- Problem
- P1055 Array Permutation
- Contest
- Brain Booster #3
- Language
- C++20 (G++ 13.2.0)
- Submit At
- 2024-05-06 15:37:28
- Judged At
- 2024-11-11 03:34:02
- Judged By
- Score
- 100
- Total Time
- 3ms
- Peak Memory
- 328.0 KiB