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poj 2749 Building roads (二分+拆点+2-sat)
Building roadsTime Limit:2000MSMemory Limit:65536KTotal Submissions:6229Accepted:2093DescriptionFarmer John's farm has N barns, and there are some cow...
分类:其他好文   时间:2014-07-16 22:54:52    阅读次数:260
poj 3267 The Cow Lexicon dp
题目大意,给出一些单词和一个句子,问这个句子最少去掉多少个字母后完全由给定的单词组成。dp[i]表示句子的前i位最少去掉多少个字母才能满足条件。则状态转移如下。最后一个字母有删掉和保留两种选择,假如删掉,那么dp[i] = dp[i-1] + 1。如果不删的话,枚举每个结尾为str[i]的单词看是否...
分类:其他好文   时间:2014-07-16 19:16:39    阅读次数:220
Cow Exhibition 变种背包
Cow ExhibitionTime Limit:1000MSMemory Limit:65536KB64bit IO Format:%I64d & %I64uSubmitStatusDescription"Fat and docile, big and dumb, they look so stu...
分类:其他好文   时间:2014-07-14 15:21:21    阅读次数:289
A广搜
/* A - 广搜 基础 Time Limit:2000MS Memory Limit:65536KB 64bit IO Format:%I64d & %I64u Submit Status Description Farmer John has been informed of the location of a fugitive cow and wants to catch...
分类:其他好文   时间:2014-07-13 16:14:50    阅读次数:236
Cow Sorting hdu 2838
Cow SortingTime Limit: 2000/1000 MS (Java/Others)Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 2224Accepted Submission(s): 701Problem ...
分类:其他好文   时间:2014-07-13 11:23:18    阅读次数:190
POJ 3267 The Cow Lexicon
The Cow Lexicon Time Limit: 2000MS   Memory Limit: 65536K Total Submissions: 7909   Accepted: 3711 Description Few know that the cows have their own dictionary with W (...
分类:其他好文   时间:2014-07-12 21:25:28    阅读次数:250
Pku3673
/* B - Cow Multiplication Time Limit:1000MS Memory Limit:65536KB 64bit IO Format:%I64d & %I64u Submit Status Practice POJ 3673 Description Bessie is tired of multiplying pairs of numbers th...
分类:其他好文   时间:2014-07-12 19:19:02    阅读次数:164
poj1985 Cow Marathon --- 树的直径
树的直径即树中最长的路径的长度。 用两次dfs,第一次从任意点出发求得一个最远点p, 第二次从p出发求得最远点,这条路径就是最长路,即所求。 #include #include #include #include #include #include #include #include #include #define inf 0x3f3f3f3f #define...
分类:其他好文   时间:2014-07-10 19:46:15    阅读次数:197
POJ 3278: Catch That Cow
Catch That Cow Time Limit: 2000MS   Memory Limit: 65536K Total Submissions: 44613   Accepted: 13946 Description Farmer John has been informed of the location of a fugit...
分类:其他好文   时间:2014-07-10 17:30:26    阅读次数:145
poj 3617 Best Cow Line (字符串反转贪心算法)
Best Cow LineTime Limit:1000MSMemory Limit:65536KTotal Submissions:9284Accepted:2826DescriptionFJ is about to take hisN(1 ≤N≤ 2,000) cows to the annua...
分类:其他好文   时间:2014-07-09 14:20:50    阅读次数:2624
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