문제https://www.acmicpc.net/problem/5567풀이(17분)import java.io.*;import java.util.*;public class Main { static int n, m; static boolean[][] arr; static boolean[] check; public static void main(String[] args) throws IOException { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); StringTokenizer st; n = Integer.parseInt(br.readLine()); m..