Atom 中间的白线（Indent Guide）怎么去除？ Atom -> Stylesheet 中添加： 类似sublime text右边的代码缩略图 Atom -> Pr...
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为了解决这个问题，首先要非常深入了解每一个概念： 1. 互斥锁（mutual exclusive lock variable / mutex ） 互斥量(mutex)从本质上...
Write a function that takes a string as input and reverse only the vowels of a string. ...
Given a binary tree, determine if it is height-balanced. For this problem, a height-bal...
数据具有属性，如关系型数据库中每一个entry都具有若干个attribute。 attribute可以按属性值之间可以进行那些操作（也就是进行哪些操作是有意义的）来分成4类...
1. Intro 聚类算法中最经典的要算是 K-means 了。其中 K 代表划分的 cluster 的 数目，而 means 则是算法的核心概念——centroid（质心）...
记录一下今天碰到一个神奇的问题——在一个ListView的自定义Item的布局中加入了一个CheckBox，结果怎么都无法触发长按事件…… 找了好久终于在网上找到了一个简单的...
做题做到 QuickSelect，结果感觉已经有点记不清 QS 了……在此用力复习一下 QS。 本文解答所有关于 QS 的疑难杂症。 首先上代码，来自 Sedgewick 的...
Given an array of n integers where n > 1, nums, return an array output such that output...
Given n non-negative integers a1, a2, ..., an, where each represents a point at coordin...
This is a follow up of Shortest Word Distance. The only difference is now word1 could b...
This is a follow up of Shortest Word Distance. The only difference is now you are given...
Given a list of words and two words word1 and word2, return the shortest distance betwe...
Given an index k, return the kth row of the Pascal's triangle. For example, given k = 3...
Given an array of integers where 1 ≤ a[i] ≤ n (n = size of array), some elements appear...
Rotate an array of n elements to the right by k steps. For example, with n = 7 and k = ...
Given a sorted array, remove the duplicates in place such that each element appear only...