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poj 3255 Roadblocks
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 ...
分类:数据库   时间:2016-08-22 09:31:36    阅读次数:303
HDU 5405 (树链剖分+线段树)
Problem Sometimes Naive 题目大意 给你一棵n个节点的树,有点权。 要求支持两种操作: 操作1:更改某个节点的权值。 操作2:给定u,v, 求 Σw[i][j] i , j 为任意两点且i到j的路径与u到v的路径相交。 解题分析 容易发现对于一个询问,答案为总点权和的平方 减去 ...
分类:其他好文   时间:2016-08-18 06:24:52    阅读次数:324
August 16th 2016 Week 34th Tuesday
The worst solitude is to be destitute of sincere friendship. 最大的孤独莫过于没有真诚的友谊。 Sometimes we pay the most for the things we get nothing, and that moment ...
分类:其他好文   时间:2016-08-16 23:47:48    阅读次数:190
light oj 1104 Birthday Paradox (概率题)
Sometimes some mathematical results are hard to believe. One of the common problems is the birthday paradox. Suppose you are in a party where there ar ...
分类:其他好文   时间:2016-08-14 19:21:26    阅读次数:161
Birthday Paradox lightoj 1104 生日悖论(概率)
Description Sometimes some mathematical results are hard to believe. One of the common problems is the birthday paradox. Suppose you are in a party wh ...
分类:其他好文   时间:2016-08-13 21:01:39    阅读次数:314
August 11th 2016, Week 33rd Thursday
A particular fine spring came around. 转眼又是一番分外明媚的春光。 Hey, it is hot outside, sometimes even unbearable. But you know, the cool and pleasant weather is ...
分类:其他好文   时间:2016-08-12 23:25:51    阅读次数:197
[Practical Git] Clean up commits with git rebase
Sometimes its nice to clean up commits before merging them into your main code repo; in this lesson, we go over using git rebase to squash commits tog ...
分类:其他好文   时间:2016-08-12 06:45:58    阅读次数:152
Repeated DNA Sequences
All DNA is composed of a series of nucleotides abbreviated as A, C, G, and T, for example: "ACGAATTCCG". When studying DNA, it is sometimes useful to ...
分类:其他好文   时间:2016-07-31 14:26:24    阅读次数:120
【POJ11855】 Buzzwords (后缀数组)
Description The word “the” is the most commonthree-letter word. It evenshows up inside other words, suchas “other” and “mathematics”.Sometimes it hide ...
分类:编程语言   时间:2016-07-19 17:07:14    阅读次数:238
July 9th, Week 28th Saturday, 2016
Every cloud has a silver lining. 山穷水尽疑无路,柳暗花明又一村。 Every cloud has a silver lining, that just because there is a bright sun behind it. Sometimes we are ...
分类:其他好文   时间:2016-07-09 23:39:16    阅读次数:149
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