随笔分类 - a) Leetcode
摘要：最近遇到的几个有意思问题，记录分享一下。 1. 合并三个有序数组(合并K个有序数组) 假如有这么三个数组：（arr包含的三个数组） 问题：K个数组，总共N个元素，合并成一个有序数组。（以升序为例） 大家一眼看上去肯定会想到归并排序，合并两个有序数组是归并排序的最后一步的动作，通过两个指针引导比较大小
阅读全文
摘要：Given an array nums of n integers, are there elements a, b, c in nums such that a + b + c = 0? Find all unique triplets in the array which gives the s
阅读全文
摘要：Given an array of integers, return indices of the two numbers such that they add up to a specific target. You may assume that each input would have ex
阅读全文
摘要：简单题，判断好每种情况，(原来剑指offer这个oj需要把js的函数写在给的solution函数里才能AC啊) 传说中的毒瘤题，曾经的一个大佬去google面试时现场没写出来，被google说滚蛋。。。 其实很简单，老样子树结构判断好null 之前就遇到别人讨论过这题，今天碰到这题也格外的亲切，一种
阅读全文
摘要：Given an array of strings, group anagrams together. For example, given: ["eat", "tea", "tan", "ate", "nat", "bat"], Return: Note: All inputs will be i
阅读全文
摘要：14. Longest Common Prefix 14. Longest Common Prefix 14. Longest Common Prefix 14. Longest Common Prefix DescriptionHintsSubmissionsDiscussSolution Des
阅读全文
摘要：题目： Given a string containing just the characters '(' and ')', find the length of the longest valid (well-formed) parentheses substring. For "(()", th
阅读全文
摘要：Implement next permutation, which rearranges numbers into the lexicographically next greater permutation of numbers. If such arrangement is not possib
阅读全文
摘要：Given a linked list, remove the nth node from the end of list and return its head. For example, Note:Given n will always be valid.Try to do this in on
阅读全文
摘要：Given n non-negative integers a1, a2, ..., an, where each represents a point at coordinate (i, ai). n vertical lines are drawn such that the two endpo
阅读全文
摘要：6. ZigZag Conversion 6. ZigZag Conversion 6. ZigZag Conversion 6. ZigZag Conversion DescriptionHintsSubmissionsDiscussSolution DescriptionHintsSubmiss
阅读全文
摘要：5. Longest Palindromic Substring DescriptionHintsSubmissionsDiscussSolution DiscussPick One Given a string s, find the longest palindromic substring i
阅读全文
摘要：3. Longest Substring Without Repeating Characters 3. Longest Substring Without Repeating Characters 3. Longest Substring Without Repeating Characters
阅读全文
摘要：2. Add Two Numbers 2. Add Two Numbers 2. Add Two Numbers 2. Add Two Numbers DescriptionHintsSubmissionsDiscussSolution DescriptionHintsSubmissionsDisc
阅读全文
摘要：260. Single Number III 260. Single Number III 260. Single Number III 260. Single Number III DescriptionHintsSubmissionsDiscussSolution DescriptionHint
阅读全文
摘要：137. Single Number II DescriptionHintsSubmissionsDiscussSolution DiscussPick One Given an array of integers, every element appears three times except
阅读全文
摘要：以前tao哥就讲过，想不到在Leetcode里面分类是一个Easy的问题。 另外Leetcode上只需要一个返回值，不需要main函数，跟平时刷的Oj系统还是不同的
阅读全文
