编程介的小学生 2017-06-01 08:48 采纳率: 0.2%
浏览 782
已采纳

A Chess Game

Problem Description
Let's design a new chess game. There are N positions to hold M chesses in this game. Multiple chesses can be located in the same position. The positions are constituted as a topological graph, i.e. there are directed edges connecting some positions, and no cycle exists. Two players you and I move chesses alternately. In each turn the player should move only one chess from the current position to one of its out-positions along an edge. The game does not end, until one of the players cannot move chess any more. If you cannot move any chess in your turn, you lose. Otherwise, if the misfortune falls on me... I will disturb the chesses and play it again.

Do you want to challenge me? Just write your program to show your qualification!

Input
Input contains multiple test cases. Each test case starts with a number N (1 <= N <= 1000) in one line. Then the following N lines describe the out-positions of each position. Each line starts with an integer Xi that is the number of out-positions for the position i. Then Xi integers following specify the out-positions. Positions are indexed from 0 to N-1. Then multiple queries follow. Each query occupies only one line. The line starts with a number M (1 <= M <= 10), and then come M integers, which are the initial positions of chesses. A line with number 0 ends the test case.

Output
There is one line for each query, which contains a string "WIN" or "LOSE". "WIN" means that the player taking the first turn can win the game according to a clever strategy; otherwise "LOSE" should be printed.

Sample Input
4
2 1 2
0
1 3
0
1 0
2 0 2
0

4
1 1
1 2
0
0
2 0 1
2 1 1
3 0 1 3
0

Sample Output
WIN
WIN
WIN
LOSE
WIN

  • 写回答

2条回答 默认 最新

  • threenewbee 2017-06-04 17:49
    关注
    本回答被题主选为最佳回答 , 对您是否有帮助呢?
    评论
查看更多回答(1条)

报告相同问题?

悬赏问题

  • ¥15 Odoo17操作下面代码的模块时出现没有'读取'来访问
  • ¥50 .net core 并发调用接口问题
  • ¥15 网上各种方法试过了,pip还是无法使用
  • ¥15 用verilog实现tanh函数和softplus函数
  • ¥15 Hadoop集群部署启动Hadoop时碰到问题
  • ¥15 求京东批量付款能替代天诚
  • ¥15 slaris 系统断电后,重新开机后一直自动重启
  • ¥15 QTableWidget重绘程序崩溃
  • ¥15 谁能帮我看看这拒稿理由啥意思啊阿啊
  • ¥15 关于vue2中methods使用call修改this指向的问题