19. Fight over Fox-hunting 猎狐引发的冲突 ① Foxes and farmers have never got on well.These small dog-like animals have long been accused of killing farm anim... ...
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其他好文 时间:
2019-03-02 13:40:38
阅读次数:
129
2428: Roadblock 题目描述 Every morning, FJ wakes up and walks across the farm from his house to the barn. The farm is a collection of N fields (1 <= N <= ...
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数据库 时间:
2019-02-12 12:57:14
阅读次数:
175
斜率优化DP的综合运用,对斜率优化的新理解。 详细介绍见 "『玩具装箱TOY 斜率优化DP』" 土地征用 Land Acquisition(USACO08MAR) Description Farmer John is considering buying more land for the farm ...
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其他好文 时间:
2019-01-29 21:19:09
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172
Description Bessie has moved to a small farm and sometimes enjoys returning to visit one of her best friends. She does not want to get to her old home ...
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数据库 时间:
2019-01-28 00:59:48
阅读次数:
166
When FJ's friends visit him on the farm, he likes to show them around. His farm comprises N (1 <= N <= 1000) fields numbered 1..N, the first of which ...
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其他好文 时间:
2019-01-20 18:56:22
阅读次数:
148
题目描述 Farmer John and his cows are planning to leave town for a long vacation, and so FJ wants to temporarily close down his farm to save money in the ...
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其他好文 时间:
2019-01-19 11:27:42
阅读次数:
184
Leaders 社论 Britain's planning laws 英国规划法 An Englishman's home 英国人之家 The shortage of housing is a gathering national crisis. Rev up the bulldozers 英国住房 ...
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其他好文 时间:
2019-01-11 21:21:42
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243
Farmer John's farm consists of a long row of N (1 <= N <= 100,000)fields. Each field contains a certain number of cows, 1 <= ncows <= 2000. FJ wants t ...
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其他好文 时间:
2018-12-22 16:46:50
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205
题目描述 Farmer John is herding his N cows (1 <= N <= 2,500) across the expanses of his farm when he finds himself blocked by a river. A single raft is av ...
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其他好文 时间:
2018-11-20 00:09:57
阅读次数:
187
嘟嘟嘟 这道题被评为紫题完全是在假(虽然我也跟风评了紫题),顶多黄题难度。 评黄题的主要原因是得知道约瑟夫递推公式,即fn = (fn - 1 +m) % n。表示n个人报数最后的获胜者,需要注意的是编号从0~n - 1,答案加1即可。 那么这道题就是枚举m,然后O(n)代入公式验证,总复杂度O(T ...
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其他好文 时间:
2018-11-13 00:14:22
阅读次数:
185