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ACboy needs your help Time Limit: 1000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 5963 Accepted Submission(s) 阅读全文
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http://www.cnblogs.com/Yu2012/archive/2011/10/09/2199156.html 阅读全文
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Children’s Queue Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 13333 Accepted Submission(s): 43 阅读全文
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找新朋友 Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 10401 Accepted Submission(s): 5493 Problem D 阅读全文
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题目链接 题意:给定m个H和n个D(1<=n,m<=20),问这些字母构成的序列中,对于任意位置,从左开始数H的累积个数总是不比D的累计数少的排列有多少种。 题解:二维DP,画一个正方形,从左上角到右下角画一条线,右上方区域就是我们所要求的。另外注意这个题的输入顺序是先输入m再输入n。 虽然知道深搜 阅读全文
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Hat's Fibonacci Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 10568 Accepted Submission(s): 350 阅读全文
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How Many Trees? Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 3397 Accepted Submission(s): 1964 阅读全文
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FatMouse' Trade Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 62898 Accepted Submission(s): 212 阅读全文
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Number Sequence Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 147161 Accepted Submission(s): 35 阅读全文
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Let the Balloon Rise Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 102132 Accepted Submission(s 阅读全文