Submission #2550102

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Source Code Expand

//
// Created by SAJI Ayahito on 2018/05/23.
//

#include <iostream>

using namespace std;

int main(void){
    long long int N, M;
    cin >> N >> M;
    long long int *a = new long long int[M];
    bool *used = new bool[N];
    for(long long int i = 0;i < M;i++){
        cin >> a[i];
        a[i] --;
    }

    for(long long int i = M-1;i >= 0; i--){
        if(used[a[i]] == false){
            used[a[i]] = true;
            cout << (a[i]+1) << endl;
        }
    }
    for(long long int j = 0;j < N;j++){
        if(used[j] == false){
            cout << (j+1) << endl;
        }
    }

    delete[] a;
    return 0;
}

Submission Info

Judge Result