Submission #2216035

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Source Code Expand

import java.util.*;

class Main{
public static void main(String[] args){
	Scanner sc = new Scanner(System.in);
	int n = sc.nextInt();
	int l = sc.nextInt();
	String[] s = new String[n];
	for(int i=0; i<n; i++) {
		s[i] = sc.next();
	}
	Arrays.sort(s);
	StringBuilder st = new StringBuilder();
	for(int i=0; i<n; i++) {
		st.append(s[i]);
	}
	System.out.println(st);
}
}

Submission Info

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