UVa 10935 - Throwing cards away I

模拟队列操作。 注意当n == 1时第一行输出末尾没有空格。PE一次~~~

代码 ：

import java.util.*;

public class Main10935 {

	public static void main(String[] args) {
		Scanner scan = new Scanner(System.in);
		Queue
  
    q = new LinkedList
   
    (); while(true) { int n = scan.nextInt(); if(n == 0) break; for(int i=1; i<=n; i++) { q.offer(i); } System.out.print("Discarded cards:"); int cnt = 0; while(true) { cnt ++; if(q.size() == 1) break; //q.poll(); if(cnt == 1) System.out.print(" " + q.poll()); else System.out.print(", " + q.poll()); q.offer(q.poll()); } System.out.println(); System.out.println("Remaining card: " + q.poll()); } } }