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http://acm.hdu.edu.cn/showproblem.php?pid=5795 A Simple Nim Problem Description Two players take turns picking candies from n heaps,the player who pic 阅读全文
摘要：
http://acm.hdu.edu.cn/showproblem.php?pid=5724 Chess Problem Description Alice and Bob are playing a special chess game on an n × 20 chessboard. There 阅读全文
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http://acm.hdu.edu.cn/showproblem.php?pid=5818 Joint Stacks Problem Description A stack is a data structure in which all insertions and deletions of e 阅读全文