1032번) 명령 프롬프트

문제 출처 : https://www.acmicpc.net/problem/1032

import java.util.Scanner; public class Q1032 { public static void main(String[] args) { Scanner sc = new Scanner(System.in); int num = sc.nextInt(); char[] chars = sc.next().toCharArray(); for ( int i = 1; i < num; i++ ) { String temp = sc.next(); for ( int  j = 0; j < chars.length; j++ ) { if ( chars[j] != temp.charAt(j) ) { chars[j] = '?'; } } } System.out.println(String.valueOf(chars)); } }