编程介的小学生 2019-09-21 22:36 采纳率: 20.5%
浏览 100

Stone Game 石头的游戏

Problem Description
This game is a two-player game and is played as follows:

  1. There are n boxes; each box has its size. The box can hold up to s stones if the size is s.
  2. At the beginning of the game, there are some stones in these boxes.
  3. The players take turns choosing a box and put a number of stones into the box. The number mustn’t be great than the square of the number of stones before the player adds the stones. For example, the player can add 1 to 9 stones if there are 3 stones in the box. Of course, the total number of stones mustn’t be great than the size of the box. 4.Who can’t add stones any more will loss the game.

Give an Initial state of the game. You are supposed to find whether the first player will win the game if both of the players make the best strategy.

Input
The input file contains several test cases.
Each test case begins with an integer N, 0 < N ≤ 50, the number of the boxes.
In the next N line there are two integer si, ci (0 ≤ ci ≤ si ≤ 1,000,000) on each line, as the size of the box is si and there are ci stones in the box.
N = 0 indicates the end of input and should not be processed.

Output
For each test case, output the number of the case on the first line, then output “Yes” (without quotes) on the next line if the first player can win the game, otherwise output “No”.

Sample Input
3
2 0
3 3
6 2
2
6 3
6 3
0

Sample Output
Case 1:
Yes
Case 2:
No

  • 写回答

0条回答 默认 最新

    报告相同问题?

    悬赏问题

    • ¥15 seatunnel-web使用SQL组件时候后台报错,无法找到表格
    • ¥15 fpga自动售货机数码管(相关搜索:数字时钟)
    • ¥15 用前端向数据库插入数据,通过debug发现数据能走到后端,但是放行之后就会提示错误
    • ¥30 3天&7天&&15天&销量如何统计同一行
    • ¥30 帮我写一段可以读取LD2450数据并计算距离的Arduino代码
    • ¥15 飞机曲面部件如机翼,壁板等具体的孔位模型
    • ¥15 vs2019中数据导出问题
    • ¥20 云服务Linux系统TCP-MSS值修改?
    • ¥20 关于#单片机#的问题:项目:使用模拟iic与ov2640通讯环境:F407问题:读取的ID号总是0xff,自己调了调发现在读从机数据时,SDA线上并未有信号变化(语言-c语言)
    • ¥20 怎么在stm32门禁成品上增加查询记录功能