문제 링크https://www.acmicpc.net/problem/2805 문제 설명 입출력 코드123456789101112131415161718192021222324252627282930313233343536373839import java.util.*;import java.io.*;public class Main {    public static void main(String[] args) throws IOException {        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));        BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System..

1920 문제 링크https://www.acmicpc.net/problem/1920 문제 설명 입출력 코드12345678910111213141516171819202122232425262728293031323334353637383940414243444546import java.io.*;import java.util.*; public class Main {    static int[] arr;     public static void main(String[] args) throws IOException {        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));        BufferedWriter bw = new Bu..