leetcode

Title Description Given an unordered integer array nums, find the length of the longest sequence of consecutive numbers (sequence elements are not required to be continuous in the original array). Please design and implement an algorithm with time complexity O(n) to solve this problem. ExampleUTF-8...

Posted by **Baumusu** on *Sat, 07 Aug 2021 07:05:14 +0930*

Today I want to learn the prefix and, and then learn the topology sorting of yesterday. But what? Let's open the daily question first to see if it's difficult, ha ha ha ha Then, it's really a very simple question. Let's practice Daily question: 1137. N th tibonacci number https://leetcode-cn.coUTF-8...

Posted by **roflpwnt** on *Mon, 09 Aug 2021 04:50:26 +0930*

subject Solving problems Solution 1: Contiguity Table + Width First Search var findWhetherExistsPath = function(n, graph, start, target) { // Create adjacency table let record = new Map(); for (let [src, des] of graph) { if (record[src]) record[src].add(des); else record[src] = new Set([des]);UTF-8...

Posted by **richmlpdx** on *Mon, 09 Aug 2021 08:15:04 +0930*

Title Description To achieve the function of getting the next permutation, the algorithm needs to rearrange the given sequence of numbers into the next larger permutation in the dictionary order. If there is no next larger arrangement, the numbers are rearranged to the smallest (that is, ascendUTF-8...

Posted by **Jagand** on *Mon, 09 Aug 2021 11:55:19 +0930*

leetcode of algorithm interview in Dachang 24. Other types of questions Video Explanation (efficient learning): Click to learn catalog: 1. Introduction 2. Time and space complexity 3. Dynamic planning 4. Greed 5. Binary search 6. Depth first & breadth first 7. Double pointer 8. Sliding window 9UTF-8...

Posted by **foamypup** on *Tue, 07 Dec 2021 18:57:58 +1030*

Hello everyone, I'm hehaige and focus on the back end. If I can, I want to be a code designer instead of an ordinary coder to witness the growth of hehaige. Your comments and praise are my biggest driving force. If you have any mistakes, please don't hesitate to comment. Thank you very much. LeUTF-8...

Posted by **ianitm** on *Tue, 07 Dec 2021 21:23:55 +1030*

leetcode of algorithm interview in Dachang 22. Dictionary tree Video Explanation (efficient learning): Click to learn catalog: 1. Introduction 2. Time and space complexity 3. Dynamic planning 4. Greed 5. Binary search 6. Depth first & breadth first 7. Double pointer 8. Sliding window 9. Bit opeUTF-8...

Posted by **plutoplanet** on *Wed, 08 Dec 2021 11:33:53 +1030*

1. Title Given a binary tree root, please find the binary search tree with the largest sum of all keys in the binary tree and return the sum of all keys of the corresponding binary tree. Binary search tree is defined as follows: The key value in the left subtree of any node is less than the keUTF-8...

Posted by **Pastulio** on *Wed, 08 Dec 2021 16:39:33 +1030*

Island problem is a classical grid search problem, which has a general DFS method. The topics are: leetcode: 200 number of islands, 463 perimeter of islands, 695 maximum area of islands. leetcode200: Give you a chance ' A two-dimensional grid composed of 1 '(land) and 0' (water). Please calculaUTF-8...

Posted by **VanHagar** on *Thu, 09 Dec 2021 07:26:51 +1030*

2021-12-08 swipe questions and punch in every day Force buckle - Sword finger offer Sword finger Offer 12. Path in matrix Given an m x n two-dimensional character grid board and a string word word. If word exists in the grid, return true; Otherwise, false is returned. Words must be formed alphaUTF-8...

Posted by **hedge** on *Thu, 09 Dec 2021 18:00:28 +1030*