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Answers for the leetcode problems. Contribute to HarryWangATX/LeetCodeProblemSolutions development by creating an account on GitHub.
LeetCode Solutions: A Record of My Problem Solving Journey.( leetcode题解,记录自己的leetcode解题之路。) - AlexSunChen/leetcode
1、LeetCode 题目太多,全部刷完肯定不是最好最有效的方式,其中涉及到的基本知识点来来回回就那些,同时有非常多的类似题,所以刷经典题,掌握这些经典题是最有效的学习方式。 2、从算法训练营第一期开始到现在的第十二期,吴师兄整理和迭代了非常多的刷题顺序,经过这两年的同学们的反馈,终于整理出一份我认为是最适...
The Skyline Problem 219. Contains Duplicate II 220. Contains Duplicate III 222. Count Complete Tree Nodes 223. Rectangle Area 224. Basic Calculator 225. Implement Stack using Queues 226. Invert Binary Tree 229. Majority Element II 230. Kth Smallest Element in a BST 231. Power of Two 232. ...
Well, if you have got this problem accepted, you may have noticed that there are 7 suggested solutions for this problem. The following passage will implement 6 of them except the O(n^2) brute force algorithm. Hash Table The hash-table solution is very straightforward. We maintain a mapping...
# Problem Description:# Given a string s, return all the palindromic permutations (without duplicates) of it. Return an empty list if no palindromic permutation could be form.# For example:# Given s = "aabb", return ["abba", "baab"].# Given s = "abc", return [].# Hint:# If a...
0218 The Skyline Problem Go 34.5% Hard 0219 Contains Duplicate II Go 37.7% Easy 0220 Contains Duplicate III Go 20.9% Medium 0221 Maximal Square 37.7% Medium 0222 Count Complete Tree Nodes Go 46.7% Medium 0223 Rectangle Area Go 37.8% Medium 0224 Basic Calculator Go 36.8% Hard 0225...
This problem was inspired by this original tweet by Max Howell: Google: 90% of our engineers use the software you wrote (Homebrew), but you can’t invert a binary tree on a whiteboard so fuck off. 【解答】这个段子已经在互联网上广为流传了,实际事情的背景我们不得而知。不过如果真是...
You can find the detailed video tutorial here Youtube B站 Thought Process This is an easy problem but might be a bit hard to code it up correctly in one pass. We can use a sliding window to keep a rolling sum and compare it with upper and lower bound. ...