摘要： 题目:https://oj.leetcode.com/problems/add-binary/Given two binary strings, return their sum (also a binary string).For example,a = "11"b = "1"Return "10... 阅读全文

摘要： 原题地址：https://oj.leetcode.com/problems/valid-palindrome/题意：Given a string, determine if it is a palindrome, considering only alphanumeric characters an... 阅读全文

摘要： Design and implement a data structure for Least Recently Used (LRU) cache. It should support the following operations:getandset.get(key)- Get the valu... 阅读全文

摘要： 原题地址：http://oj.leetcode.com/problems/swap-nodes-in-pairs/Given a linked list, swap every two adjacent nodes and return its head.For example,Given 1->2... 阅读全文

摘要： 原题地址：https://oj.leetcode.com/problems/reverse-linked-list-ii/题意：Reverse a linked list from positionmton. Do it in-place and in one-pass.For example:Gi... 阅读全文

摘要： 原题地址：https://oj.leetcode.com/problems/add-two-numbers/题意：You are given two linked lists representing two non-negative numbers. The digits are stored i... 阅读全文

摘要： 原题地址：https://oj.leetcode.com/problems/rotate-image/题意：You are given annxn2D matrix representing an image.Rotate the image by 90 degrees (clockwise).Fo... 阅读全文

摘要： 原题地址：https://oj.leetcode.com/problems/candy/题意：There areNchildren standing in a line. Each child is assigned a rating value.You are giving candies to ... 阅读全文

摘要： 原题地址：https://oj.leetcode.com/problems/gas-station/题意：There areNgas stations along a circular route, where the amount of gas at stationiisgas[i].You ha... 阅读全文

摘要： 原题地址：https://oj.leetcode.com/problems/plus-one/题意：Given a non-negative number represented as an array of digits, plus one to the number.The digits are... 阅读全文