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LeetCode: Merge Sorted Array
LeetCode: Merge Sorted ArrayGiven two sorted integer arrays A and B, merge B into A as one sorted array. Note:You may assume that A has enough space (...
分类:其他好文   时间:2014-09-01 22:29:23    阅读次数:172
Multiply Strings
Given two numbers represented as strings, return multiplication of the numbers as a string.Note: The numbers can be arbitrarily large and are non-nega...
分类:其他好文   时间:2014-09-01 20:59:03    阅读次数:173
ZOJ--3612--Median【线段树+离散化】
链接:http://acm.zju.edu.cn/onlinejudge/showProblem.do?problemId=4736 题意:有最多10000次操作,在一个初始为空的数列中添加或移除元素并保持数列有序,每次操作后,如果数列个数为奇数就输出中间值,如果为偶数就输出中间两个值得平均值。 思路:刚开始写了一发multiset模拟,看吴琦TLE了估计他也是multiset写的,就...
分类:其他好文   时间:2014-09-01 17:56:43    阅读次数:226
Same Tree
问题描述 Given two binary trees, write a function to check if they are equal or not. Two binary trees are considered equal if they are structurally identical and the nodes have the same value. 解决...
分类:其他好文   时间:2014-09-01 15:40:33    阅读次数:146
【算法导论】学习笔记——第9章 中位数和顺序统计量
在一个由n个元素组成的集合中,第i个顺序统计量(order statistic)是该集合中第i小的元素。用非形式化的描述来说,一个中位数(median)使它所属集合的“中点元素”。当n为奇数时,中位数是唯一的,位于i=(n+1)/2处。当n为偶数时,存在两个中位数,分别位于i=n/2和i=n/2+1...
分类:其他好文   时间:2014-09-01 15:33:03    阅读次数:452
UVA - 11077 Find the Permutations (置换)
Sorting is one of the most usedoperations in real life, where Computer Science comes into act. It iswell-known that the lower bound of swap based sorting is nlog(n).It means that the best possible sor...
分类:其他好文   时间:2014-09-01 10:50:23    阅读次数:234
Leetcode dfs Combinations
Combinations  Total Accepted: 18327 Total Submissions: 60479My Submissions Given two integers n and k, return all possible combinations of k numbers out of 1 ... n. For example, If n = 4...
分类:其他好文   时间:2014-09-01 01:40:32    阅读次数:204
【leetcode】Divide Two Integers
题目: Divide two integers without using multiplication, division and mod operator. 解析:...
分类:其他好文   时间:2014-08-31 22:58:02    阅读次数:246
乌拉姆数列 Euler167
昨天 yep 问了一个问题: For two positive integers a and b, the Ulam sequence U(a,b) is defined by U(a,b)1 = a, U(a,b)2 = b and for k > 2, U(a,b)k is the smallest integer greater than U(a,b)(k-1) which can...
分类:其他好文   时间:2014-08-31 20:07:21    阅读次数:359
INNER JOIN vs. CROSS APPLY
refer from :http://explainextended.com/2009/07/16/inner-join-vs-cross-apply/INNER JOINis the most used construct inSQL: it joins two tables together, ...
分类:移动开发   时间:2014-08-31 18:29:51    阅读次数:158
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