[백준, BOJ 2661] 좋은수열 (java)

https://www.acmicpc.net/problem/2661메모리: 11,524 KB , 시간: 68 ms사용 알고리즘: 백트래킹 import java.io.BufferedReader;import java.io.InputStreamReader;public class Main { static int N; static int[] arr; public static void main(String[] args) throws Exception{ BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); N = Integer.parseInt(br.readLine()); arr = new..