https://www.acmicpc.net/problem/2161 덱 문제 import java.io.BufferedReader;import java.io.IOException;import java.io.InputStreamReader;import java.util.ArrayDeque;import java.util.Deque;class Main { public static void main(String[] args) throws IOException { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); int N = Integer.parseInt(br.readLine()); Deque q = new Arr..