백준 2164 : 카드2 _ 자바 Java

https://www.acmicpc.net/problem/2164

2164번: 카드2

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import java.io.*;
import java.util.*;

public class Main {
	
	static Queue<Integer> qu = new LinkedList<>();
	public static void main(String[] args) throws IOException {

		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		int num = Integer.parseInt(br.readLine());
		
		for(int i=1; i<=num; i++) {
			qu.add(i);
		}
		while(qu.size()>1) {
			qu.poll();
			qu.add(qu.poll());
			
		}
		
		System.out.println(qu.peek());
			
	}
	

}