Submission #2225020

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Source Code Expand

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


int main (){
    
    int N,L;
    cin >> N >> L;
    string S[N],ans;
    for(int i = 0; i < N; i++) {
        cin >> S[i];
    }
    
    sort(S,S+N);
    ans = S[0];
    for(int i = 1; i < N; i++) {
        ans += S[i];
    }
    
    cout << ans << endl;
    return 0;
}

Submission Info

Judge Result