https://www.acmicpc.net/problem/21318 문제 풀이package programmers;import java.io.BufferedReader;import java.io.IOException;import java.io.InputStreamReader;import static java.util.Arrays.stream;public class Main { static BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); public static void main(String[] args) throws IOException { int n = Integer.parseInt(br.read..
