摘要：
Given a list of strings words representing an English Dictionary, find the longest word in words that can be built one character at a time by other wo 阅读全文
2018年12月21日
摘要：
Given a list of sorted characters letters containing only lowercase letters, and given a target letter target, find the smallest element in the list t 阅读全文
2018年12月20日
摘要：
Given a non-negative integer numRows, generate the first numRows of Pascal's triangle. In Pascal's triangle, each number is the sum of the two numbers 阅读全文
摘要：
Given an unsorted array of integers, find the length of longest continuousincreasing subsequence (subarray). Example 1: Input: [1,3,5,4,7] Output: 3 E 阅读全文
2018年12月19日
摘要：
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 阅读全文
2018年12月18日
摘要：
Given two strings S and T, return if they are equal when both are typed into empty text editors. # means a backspace character. Example 1: Input: S = 阅读全文
摘要：
Given a binary tree, return all root-to-leaf paths. Note: A leaf is a node with no children. Example: Recursion: 阅读全文
2018年12月17日
摘要：
There are 1000 buckets, one and only one of them contains poison, the rest are filled with water. They all look the same. If a pig drinks that poison 阅读全文
2018年12月16日
摘要：
Your friend is typing his name into a keyboard. Sometimes, when typing a character c, the key might get long pressed, and the character will be typed 阅读全文
摘要：
Given an integer, return its base 7 string representation. Example 1: Input: 100 Output: "202" Example 2: Input: -7 Output: "-10" Note: The input will 阅读全文
