bestwait的博客

Linked List Cycle I和II 以及扩展

Valid Number（LeetCode）

Longest Substring Without Repeating Characters(LeetCode)

Given a non negative integer number num. For every numbers i in the range 0 ≤ i ≤ num calculate the number of 1's in their binary representation and return them as an array. Example: For num = 5

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. For

Convert a non-negative integer to its english words representation. Given input is guaranteed to be less than 231 - 1. For example, 123 -> "One Hundred Twenty Three" 12345 -> "Twelve Thousand Th

Given a string S, find the longest palindromic substring in S. You may assume that the maximum length of S is 1000, and there exists one unique longest palindromic substring. 题目：查找字符串中最长回文子

LeetCode----Implement strStr()