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HDU 5606 tree 并查集
tree把每条边权是1的边断开,发现每个点离他最近的点个数就是他所在的连通块大小.开一个并查集,每次读到边权是0的边就合并.最后Ans?i??=size[findset(i)],size表示每个并查集根的sizeAns_i=size[findset(i)],sizeAns?i??=size[find...
分类:其他好文   时间:2016-01-02 22:36:51    阅读次数:536
Median of Two Sorted Arrays
There are two sorted arraysnums1andnums2of size m and n respectively. Find the median of the two sorted arrays. The overall run time complexity should...
分类:其他好文   时间:2016-01-02 22:29:36    阅读次数:200
Centos7 安装配置Nginx
一、安装准备二、安装nginx安装之前,最好检查一下是否已经安装有nginx$ find -name nginx如果系统已经安装了nginx,那么就先卸载$ yum remove nginx首先进入/usr/local目录$ cd /usr/local从官网下载最新版的nginx$ wget htt...
分类:其他好文   时间:2016-01-02 20:27:05    阅读次数:183
jquery的filter()函数和find()函数的区别
jquery的filter()函数和find()函数的区别:在jQuery中中众多的函数,使用起来非常的方便,同时有些函数在作用上非常的接近,于是也容易造成一定的误操作。filter()函数和find()函数同有筛选的作用,下面就介绍一下它们两者之间的区别。一.filter()函数:此函数用来筛选元...
分类:Web程序   时间:2016-01-02 16:30:49    阅读次数:180
LeetCode - Minimum Window Substring
题目:Given a string S and a string T, find the minimum window in S which will contain all the characters in T in complexity O(n). For example,S = "ADOBE...
分类:Windows程序   时间:2016-01-02 14:25:28    阅读次数:243
Leetcode: Range Sum Query - Mutable
Given an integer array nums, find the sum of the elements between indices i and j (i ≤ j), inclusive.The update(i, val) function modifies nums by upda...
分类:其他好文   时间:2016-01-02 14:21:27    阅读次数:204
查找一个字符串在另一个字符串中
strig=“what is your name”substring="name"str.endswith(suffix[,start[,end]])str.find(sub[,start[,end]])str.index(sub[,start[,end]])str.rfind(sub[,start...
分类:其他好文   时间:2016-01-02 10:29:42    阅读次数:969
*Find the Celebrity
Suppose you are at a party withnpeople (labeled from0ton - 1) and among them, there may exist one celebrity. The definition of a celebrity is that all...
分类:其他好文   时间:2016-01-02 08:43:25    阅读次数:141
Leetcode: Maximum Product of Word Lengths
Given a string array words, find the maximum value of length(word[i]) * length(word[j]) where the two words do not share common letters. You may assum...
分类:其他好文   时间:2016-01-02 08:42:49    阅读次数:341
LeetCode 129:Sum Root to Leaf Numbers
Given a binary tree containing digits from 0-9 only, each root-to-leaf path could represent a number. An example is the root-to-leaf path 1->2->3 which represents the number 123. Find the tota...
分类:其他好文   时间:2016-01-01 19:07:40    阅读次数:185
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