摘要：
题目：Given a collection of integers that might contain duplicates,nums, return all possible subsets.Note:Elements in a subset must be in non-descending ... 阅读全文
摘要：
varfunc=function和functionfunc()在意义上没有任何不同，但其解释优先级不同：后者会先于同一语句级的其他语句。即：{ var k = xx(); function xx(){return 5;}}不会出错，而{ var k = xx(); var xx = function... 阅读全文
摘要：
题目：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 ... 阅读全文
摘要：
题目：Given a triangle, find the minimum path sum from top to bottom. Each step you may move to adjacent numbers on the row below.For example, given the ... 阅读全文
摘要：
题目：Given an array of integers, find two numbers such that they add up to a specific target number.The function twoSum should return indices of the two... 阅读全文
摘要：
题目：Follow up for "Unique Paths":Now consider if some obstacles are added to the grids. How many unique paths would there be?An obstacle and empty spac... 阅读全文
摘要：
题目：A robot is located at the top-left corner of amxngrid (marked 'Start' in the diagram below).The robot can only move either down or right at any poi... 阅读全文