/ SeriousOJ /

Record Detail

Accepted


  
# Status Time Cost Memory Cost
#1 Accepted 2ms 488.0 KiB
#2 Accepted 4ms 556.0 KiB

Code

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

int main() {
    int t;
    cin >> t;
    while(t--)
    {
        int n;
        cin>>n;
        int arr[n];
        for(int i=0; i<n; i++)
        {
            cin>>arr[i];
        }
        sort(arr, arr + n);
        int arr2[n];
        for(int i=1;i<n+1; i++)
        {
            arr2[i-1]=i;
        }
        int flag = 1;
        for(int i=0; i<n; i++)
        {
            if(arr[i] != arr2[i])
            {
                flag = 0;
                break;
            }
        }
        if(flag == 1)
        {
            cout<<"YES"<<endl;
        }
        else{
            cout<<"NO"<<endl;
        }

    }
    return 0;
}

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 15:15:33
Judged At
2024-11-11 03:34:52
Judged By
Score
100
Total Time
4ms
Peak Memory
556.0 KiB