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310. Minimum Height Trees
For a undirected graph with tree characteristics, we can choose any node as the root. The result graph is then a rooted tree. Among all possible roote ...
分类:其他好文   时间:2016-04-26 15:42:52    阅读次数:173
[CareerCup] 17.9 Word Frequency in a Book 书中单词频率
17.9 Design a method to find the frequency of occurrences of any given word in a book. 这道题让我们找书中单词出现的频率,那么首先需要搞清楚的问题是,只需要统计一个单词,还是多个单词。如果是一个单词的话,那直接就遍 ...
分类:其他好文   时间:2016-04-26 11:01:01    阅读次数:126
lable自动适配大小
#import "ViewController.h" @interface ViewController () @end @implementation ViewController - (void)viewDidLoad { [super viewDidLoad]; // Do any addit ...
分类:其他好文   时间:2016-04-26 10:54:11    阅读次数:150
Part 19 AngularJS Services
What is a service in AngularJSBefore we talk about what a service is in Angular. Let's talk about a service in web development. If you have any experi ...
分类:Web程序   时间:2016-04-26 00:38:56    阅读次数:233
leetcode 202. Happy Number
Write an algorithm to determine if a number is "happy". A happy number is a number defined by the following process: Starting with any positive intege ...
分类:移动开发   时间:2016-04-25 06:39:05    阅读次数:214
LeetCode 202
Happy Number Write an algorithm to determine if a number is "happy". A happy number is a number defined by the following process: Starting with any po ...
分类:其他好文   时间:2016-04-25 00:30:09    阅读次数:179
python内置函数
常用: https://docs.python.org/3.5/library/functions.html 1.abs()绝对值 2.all()全为真,则真,否则为假 3.any()有一个为真,则真,否则全为假则假 4.ascii()调用__repr__()这个方法,返回一个字符串,和repr() ...
分类:编程语言   时间:2016-04-24 06:21:49    阅读次数:212
python内置函数
abs()#取绝对值all()#参数为序列,参数为list就判断所有元素,参数为dict就判断所有key,都为真则为真。any()#判断参数中一个为真,则为真。ascii()#同各数据类型方法中的__repr__(),返回一个可打印的对象字符串方式表示。当遇到非ASCII码时,就会输出\x,\u或\U等字符来表示p..
分类:编程语言   时间:2016-04-23 23:12:55    阅读次数:332
Leetcode题目:Happy Number
题目: Write an algorithm to determine if a number is "happy". A happy number is a number defined by the following process: Starting with any positive in ...
分类:移动开发   时间:2016-04-23 18:06:26    阅读次数:161
屏幕适配 size class
1. size class尺寸类型如果把屏幕的长和宽都按长度划分三种类型:压缩(compact)、任意(any)、常规(regular),那么长和宽的组合就有9种类型。这里我把每一种类型称为一种模式。另外,屏幕的状态根据尺寸大小和其方向可以分为很多情况。模式和屏幕的状态有着对应关系,可以是一对一,也可以是一对多。比如说,一种模式叫任意模式,也就是长是任意的,宽也是任意的,这种模式可以对应所有的屏幕状...
分类:其他好文   时间:2016-04-22 20:48:31    阅读次数:174
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