Submission #2968231

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Source Code Expand

#include <bits/stdc++.h>
#define rep(i,n) for(int i=0;i<n;i++)
using namespace std;
const int INF=INT_MAX,MOD=1e9+7;

int main(){
    int n,m; cin>>n>>m;
    int a[m]; rep(i,m) cin>>a[i];
    reverse(a,a+m);
    bool b[n]; rep(i,n) b[i]=1;

    rep(i,m){
        if(b[a[i]-1]){
            cout<<a[i]<<endl;
            b[a[i]-1]=0;
        }
    }
    rep(i,n){
        if(b[i]) cout<<i+1<<endl;
    }
    return 0;
}

Submission Info

Judge Result