acvc

2014年8月15日

摘要： KingdomProblem DescriptionTeacher Mai has a kingdom consisting of n cities. He has planned the transportation of the kingdom. Every pair of cities has... 阅读全文

posted @ 2014-08-15 22:45 acvc 阅读(340) 评论(0) 推荐(0)

Codeforces Round #259 (Div. 2) D

摘要： D. Little Pony and Harmony Chesttime limit per test4 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputPrincess Twiligh... 阅读全文

posted @ 2014-08-15 19:35 acvc 阅读(159) 评论(0) 推荐(0)

Codeforces Round #258 (Div. 2) D

摘要： D. Count Good Substringstime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputWe call a stringgood, if... 阅读全文

posted @ 2014-08-15 19:25 acvc 阅读(167) 评论(0) 推荐(0)

HDU 4945 （dp+组合数学）

摘要： 2048Problem DescriptionTeacher Mai is addicted to game 2048. But finally he finds it's too hard to get 2048. So he wants to change the rule:You are gi... 阅读全文

posted @ 2014-08-15 14:29 acvc 阅读(390) 评论(0) 推荐(0)

2014年8月12日

HDU 3664 (水地推)

摘要： http://acm.hdu.edu.cn/showproblem.php?pid=3664题意：给出数字n，问n的所有的排列中满足Ai>i 数字恰好为 k的排列的个数。sl : dpdp【n】【k】 = dp【n-1】【k】*(k+1) + dp【n-1】【k-1】*(n-1-k+1);为什么？ ... 阅读全文

posted @ 2014-08-12 23:53 acvc 阅读(164) 评论(0) 推荐(0)

最近做多校题目随想。。。

摘要：只有一句话：交题的那一瞬间总是这么的感动嘎嘎。虽然说只能搞水体。。。阅读全文

posted @ 2014-08-12 22:33 acvc 阅读(145) 评论(0) 推荐(0)

HDU 4944

摘要： FSF’s gameProblem DescriptionFSF has programmed a game.In this game, players need to divide a rectangle into several same squares.The length and width... 阅读全文

posted @ 2014-08-12 20:30 acvc 阅读(312) 评论(0) 推荐(0)

HDU 4941

摘要： Magical ForestProblem DescriptionThere is a forest can be seen as N * M grid. In this forest, there is some magical fruits, These fruits can provide a... 阅读全文

posted @ 2014-08-12 19:24 acvc 阅读(292) 评论(0) 推荐(0)

HDU 4939

摘要： Stupid Tower DefenseProblem DescriptionFSF is addicted to a stupid tower defense game. The goal of tower defense games is to try to stop enemies from ... 阅读全文

posted @ 2014-08-12 19:20 acvc 阅读(226) 评论(0) 推荐(0)

2014年8月10日

hrbust 1840 (树状数组第k大) 删点使用

摘要：小橙子Time Limit: 2000 MSMemory Limit: 32768 KTotal Submit: 2(2 users)Total Accepted: 1(1 users)Rating:Special Judge:NoDescription玻璃小屋里曾经住着一个小橙子。小橙子小小的，性... 阅读全文

posted @ 2014-08-10 17:32 acvc 阅读(236) 评论(0) 推荐(0)

最后的结局源于现在的冲动

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