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[Leetcode] Factor Combinations 因数组合

Factor CombinationsNumbers can be regarded as product of its factors. For example,8 = 2 x 2 x 2; = 2 x 4.Write a function that takes an integer n and return all possible combinations of i

Permutations(46)

Permutations Given a collection of distinct numbers, return all possible permutations. For example, [1,2,3] have the following permutations: [1,2,3], [1,3,2], [2,1,3], [2,3,1], [3,1,2], an

Subsets

Subsets Given a set of distinct integers, nums, return all possible subsets. Note: Elements in a subset must be in non-descending order. The solution set must not contain duplicate subsets

用 Swift 编写面向协议的网络请求

作者:Natasha The Robot,原文链接,原文日期:2016/05/12译者:saitjr;校对:Channe;定稿:CMB和我一起参加9 月 1 日 - 9月 2 日在纽约举办的 Swift 社区庆典:tada:吧!使用优惠码 NATASHATHEROBOT 可以获得 $100 的折扣!我最近做了个 Swift 面向协议编程实践(POP:boom:) 的演讲。视

一个有关字符串子串的有趣问题

问题描述:输入一个字符串。输入的字符串仅由'0'和'1'组成,比如'10100011101'这样的。从输入的字符串中截取一段连续的片段作为子串,且子串满足从左往右数,'0'的个数总是不比'1'少。输出其满足条件的最长的子串的长度。下面是JavaScript的实现: function subString(str){var arr = str.split('');var res