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炮 Description 众所周知，双炮叠叠将是中国象棋中很厉害的一招必杀技。炮吃子时必须隔一个棋子跳吃，即俗称"炮打隔子"。 炮跟炮显然不能在一起打起来，于是rly一天借来了许多许多的炮在棋盘上摆了起来……他想知道，在N×M的矩形 方格中摆若干炮（可以不摆）使其互不吃到的情况下方案数有几种。 棋 阅读全文
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Another OCD Patient Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 131072/131072 K (Java/Others)Total Submission(s): 1757 Accepted Submission(s) 阅读全文
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MU Puzzle Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 1997 Accepted Submission(s): 787 Proble 阅读全文
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Mondriaan's Dream Time Limit: 3000MS Memory Limit: 65536K Total Submissions: 17187 Accepted: 9911 Description Squares and rectangles fascinated the fa 阅读全文
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Pebbles Time Limit: 3000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 1820 Accepted Submission(s): 1034 Problem 阅读全文