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I can do it!Time Limit: 2000/2000 MS (Java/Others)Memory Limit: 65535/32768 K (Java/Others) Total Submission(s): 1010Accepted Submission(s): 471 Probl... 阅读全文
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不可摸数Time Limit: 2000/1000 MS (Java/Others)Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 10585Accepted Submission(s): 2734 Problem Des... 阅读全文
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跳跃的舞者，舞蹈链（Dancing Links）算法——求解精确覆盖问题转：http://www.cnblogs.com/grenet/p/3145800.html精确覆盖问题的定义：给定一个由0-1组成的矩阵，是否能找到一个行的集合，使得集合中每一列都恰好包含一个1例如：如下的矩阵就包含了这样一个... 阅读全文
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GTW likes mathAccepts: 472Submissions: 2140Time Limit: 2000/1000 MS (Java/Others)Memory Limit: 131072/131072 K (Java/Others)Problem DescriptionAfter a... 阅读全文
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ZYB's PremutationTime Limit: 2000/1000 MS (Java/Others)Memory Limit: 131072/131072 K (Java/Others) Total Submission(s): 758Accepted Submission(s): 359... 阅读全文
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Drying Time Limit: 2000MS Memory Limit: 65536K Total Submissions: 11512 Accepted: 2977 Description It is very hard to wash and especially to dry cloth 阅读全文
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1084 - WinterPDF (English)StatisticsForumTime Limit:2 second(s)Memory Limit:32 MBWinter is coming. In a land far away,Nmen are spending the nights in ... 阅读全文
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1079 - Just another RobberyPDF (English)StatisticsForumTime Limit:4 second(s)Memory Limit:32 MBAs Harry Potter series is over, Harry has no job. Since... 阅读全文
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Special SubsequenceTime Limit: 5 Seconds Memory Limit: 32768 KBThere a sequence S with n integers , and A is a special subsequence that satisfies |Ai-... 阅读全文
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Problem 2188 过河IAccept: 112Submit: 277 Time Limit: 3000 mSecMemory Limit : 32768 KBProblem Description一天，小明需要把x只羊和y只狼运输到河对面。船可以容纳n只动物和小明。每次小明划船时，都必须至少... 阅读全文