Howfar's

摘要： LeetCode Notes_#16 3Sum CloestLeetCode Contents题目思路和解答思路解答 题目Given an array nums of n integers and an integer target, find three integers in nums such that the sum is closest to target. Return the s... 阅读全文

摘要： LeetCode Notes_#15 3SumLeetCode Contents题目思路和解答思路解答 题目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... 阅读全文

摘要： LeetCode Notes_#11 Container with Most WaterLeetCode Contents题目思路和解答思路解答需要注意的点 题目Given n non-negative integers a1, a2, ..., an , where each represents a point at coordinate (i, ai). n vertical lines... 阅读全文

摘要： LeetCode Notes_#58 Length of Last WordLeetCode Contents题目思路和解答思路解答 题目Given a string s consists of upper/lower-case alphabets and empty space characters ' ', return the length of last word in the str... 阅读全文

摘要： Python的四种常见数据结构比较Python list tuple set dict Contents本质上的区别语法上的比较 本质上的区别最重要的区别在于是否可变，是否有序这两个维度，可以分成4个象限，如下图比较 语法上的比较listtupledictset创建a=[element1,element2,...]a=(element1,element2,...)a={key1(不可变):v... 阅读全文

摘要： LeetCode Notes_#53 Maximum SubarrayLeetCode Contents题目思路和解答思路解答需要注意的点 题目Given an integer array nums, find the contiguous subarray (containing at least one number) which has the largest sum and retur... 阅读全文

摘要： LeetCode Notes_#38 Count and SayLeetCode Contents题目思路和解答题意思路解答总结 题目The count-and-say sequence is the sequence of integers with the first five terms as following:1.12.113.214.12115.1112211 is read of... 阅读全文

摘要： LeetCode Notes_#6 Zigzag ConversionLeetCode Contents题目思路和解答思路解答要注意的一些点参考 题目The string "PAYPALISHIRING" is written in a zigzag pattern on a given number of rows like this: (you may want to display th... 阅读全文

摘要： LeetCode Notes_#5 Longest Palindromic SubstringLeetCode Contents题目思路和解答思路解答 题目Given a string s, find the longest palindromic substring in s. You may assume that the maximum length of s is 1000.Examp... 阅读全文

摘要： LeetCode Notes_#3 Longest Substring Without Repeating CharactersLeetCode Contents题目思路和解答思路解答高票解答 题目Given a string, find the length of the longest substring without repeating characters.Example 1:Inp... 阅读全文