2014年6月20日
Careercup | Chapter 6
摘要： 6.2There is an 8x8 chess board in which two diagonally opposite corners have been cut off. You are given 31 dominos, and a single domino can cover exa... 阅读全文
posted @ 2014-06-20 20:39 linyx 阅读(151) 评论(0) 推荐(0) 编辑