/ SeriousOJ /

Record Detail

Accepted


  
# Status Time Cost Memory Cost
#1 Accepted 2ms 328.0 KiB
#2 Accepted 4ms 548.0 KiB

Code

#include <bits/stdc++.h>
using namespace std;

int main(){
    int T;
    cin>> T;

    while (T--)
    {
        int N;
        cin >> N;

        vector<int>A(N);
        for(int i=0;i<N;i++){
            cin >> A[i];
        }
        sort(A.begin(),A.end());
        int count=0;
        for(int i=0;i<N;i++){
            if(A[i]==(i+1)){
                count++;
            }
        }
        if(count==N){
            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 15:15:36
Judged At
2024-11-11 03:34:51
Judged By
Score
100
Total Time
4ms
Peak Memory
548.0 KiB