Tag: algorithm

The back-end

Leetcode – Finds the first and last positions of elements in a sorted array

December 6, 2023

by 葛雅琪

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This is the 23rd day of my participation in The August Genwen Challenge. I bought a convertible bond today with a yield of 30%+. Now...

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Artificial intelligence (ai)

Leetcode 答 案 118

December 6, 2023

by Matthew Brennan

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Given a non-negative integer numRows, generate the former numRows of the Yanghui triangle. In Yang Hui's triangle, each number is the sum of the numbers...

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The back-end

Sample fusion principle and practice

December 6, 2023

by Amber Hampton

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Guest waiting for host to send key guest original data set ID column add random number to ID column (Python code

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The front end

Day95: Single element in ordered Array (Item no. 540)

December 6, 2023

by Jennifer Curtis

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Given an ordered array of integers, where every element appears twice and only one number appears only once, find the number. The sample...

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Artificial intelligence (ai)

Support vector machine

December 6, 2023

by 曾哲瑋

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The main problems solved by support vector machine and the methods to solve the problems. Problems solved: linearly separable and linearly inseparable problems, from lower...

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The front end

[LeetCode1438 topic absolute difference does not exceed the limit of the longest continuous subarray] | punch brush

December 6, 2023

by Robert Taylor

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Return the length of the longest continuous subarray in which the absolute difference between any two elements must be less than or equal to the...

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The code of life

Self-correcting and dimensional learning ability of particle swarm optimization algorithm Matlab source code

December 6, 2023

by Amy Broughan

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Particle Swarm algorithm Particle swarm algorithm was proposed by Dr. Eberhart and Dr. Kennedy in 1995. It originated from the study of the predation behavior...

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The back-end

Dynamic programming – Summary of algorithm problems

December 6, 2023

by Christopher White

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The architectural sequence and https://leetcode-cn.com/problems/maximum-subarray/ https://juejin.cn/post/6982408829761749 in climbing the stairs

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The back-end

789. Escape the Obstructionist

December 6, 2023

by 趙家瑋

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This is the 22nd day of my participation in the August Gwen Challenge. You're playing a simplified version of Pac-Man. You start at [0, 0],...

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The code of life

199. Binary Tree Right Side View

December 6, 2023

by David Gray

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As you can see, the right view of a binary tree is actually a list of nodes on the right of each level. So, we...

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The front end

Talk about the nature of dynamic programming

December 6, 2023

by James Berg

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But dynamic programming is more than that. In today's article, let's dive into the nature of dynamic programming. Dynamic programming in recursion: Is it simply...

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The front end

Start learning algorithms

December 6, 2023

by Manikya Goswami

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In this article, it is divided into nine kinds of algorithm content (stack, queue, linked list, set, dictionary, number, graph, heap, search sort), and four...

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The back-end

From “mathematical induction” to understanding “recursive algorithms”!

December 6, 2023

by Jhanvi Loke

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I believe you will occasionally encounter questions or programming about recursive algorithms in your interview or work, so today we are going to talk about...

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The front end

JavaScript variable lifecycle: Why let is not promoted

December 6, 2023

by Shlok Chandra

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Promotion is actually the process of moving variables and function definitions to the top of the scope. It usually occurs with the variable declaration var...

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reading

A gentle guide to machine learning

December 6, 2023

by 李冠廷

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In this article, Machine learning and NLP expert Raul Garreta, co-founder and CEO of MonkeyLearn, Outlines important concepts, applications, and challenges in using machine learning...

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The back-end

Leetcode: Keyboard with only two keys

December 6, 2023

by Hazel Sims

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Title: Originally there was only one character 'A' on A notepad. You can do two things to this notepad at a time: CopyAll: you can...

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The front end

’70. Stair climbing advanced version’ full backpack 🎒 problem AC- dynamic programming implementation

December 6, 2023

by Mr. Matthew Evans

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Imagine you are climbing stairs. It takes n steps to get to the top. You can climb one or two steps at a time. How...

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The back-end

Leetcode – Appearance sequence

December 6, 2023

by 李雅琪

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This is the 27th day of my participation in the August More Text Challenge. Today is another Friday, and it's time for this week's stocktaking....

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reading

Time Series Predictive analysis: A case study of NASDAQ

December 6, 2023

by Dhanuk Divan

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It would be nice if the data analyst's model could accurately predict tomorrow's broad index. I laugh at the thought of it, and then I...

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The code of life

Leetcode 55. Jump game thinking analysis

December 6, 2023

by Mary Smith-McCormick

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Given an array of non-negative integers, you start at the first position in the array. Each element in the array represents the maximum length you...

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The back-end

Algorithmic Interview Seminar (Java Version)

December 6, 2023

by 陳鈺婷

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[End] This set of courses does not speak the basic knowledge of algorithms, specializing in algorithm problem solving. The lecturer as a lot of algorithm...

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The back-end

[Re-learning algorithm] red black tree

December 6, 2023

by Melissa Miranda

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Red-black Tree A red-black Tree is a self-balanced binary search Tree called a symmetric binary B Tree. It can find, insert, and delete in order...

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Artificial intelligence (ai)

User interest point multi-objective prediction model practice

December 6, 2023

by Eva Barr

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Recommendation systems in the industry usually have a two-stage architecture: recall + sort. In the recall stage, I was responsible for Match, and efficiently retrieved...

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Artificial intelligence (ai)

Study Note CB008: Word sense disambiguation, supervised, unsupervised, semantic role tagging, information retrieval, TF-IDF, implicit semantic indexing model

December 6, 2023

by Ishaan Vyas

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Word sense disambiguation, the basis of sentence and text semantic understanding, must be solved. Languages have a large number of words with multiple meanings. Word...

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The back-end

Brush from zero algorithm – full array

December 6, 2023

by Gabriel Washington

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"This is the 21st day of my participation in the First Challenge 2022. For details: First Challenge 2022." Given an array nums that does not...

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The code of life

The MySQL – lock”

December 6, 2023

by Christina Gutierrez

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Global locking is mainly used for logical backup processes. For InnoDB engine libraries, use -- single-transaction; MySQL provides a method to add a global read...

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The code of life

LeetCode everyday string: 28 implementation strStr()

December 6, 2023

by Advik Sahota

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Given a Haystack string and a Needle string, find the first position in the Haystack string where the Needle string appears (starting from 0). If...

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Artificial intelligence (ai)

May 26, 21 Good future machine learning algorithm engineer summer internship interview question 2

December 6, 2023

by Joyce Khan

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This is the 14th day of my participation in the November Gwen Challenge, the activity details check: 2021 Last Gwen Challenge Today picked 2 good...

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The back-end

Stack this data structure, isn’t last in first out?

December 6, 2023

by Mr. Oliver Jones

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What is a stack? We encounter a lot in everyday coding, and many people's contact with the stack may be limited to recursive use of...

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The front end

This paper introduces the application of greedy algorithm and backtracking algorithm in front end

December 6, 2023

by 陳詩涵

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1. What is the greedy algorithm? Greedy algorithm is a method in algorithm design. Expect through each stage of the local optimal selection, from

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