문제https://www.acmicpc.net/problem/1431풀이(12분)import java.io.*;import java.util.*;public class Main { public static void main(String[] args) throws IOException { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); // 표준 입력으로부터 입력을 받음 int n = Integer.parseInt(br.readLine()); String[] arr = new String[n]; for(int i = 0; i { if(o1.lengt..