-
LeetCode: 746 Min Cost Climbing Stairs
•
Let’s solve LeetCode 746: Min Cost Climbing Stairs using the provided template, including both iterative and recursive approaches. Problem You are given an integer array cost where cost[i] is the cost of i-th step on a staircase. Once you pay the cost, you can either climb one or two steps.…
-
LeetCode: 929 Unique Email Addresses
•
Every valid email consists of a local name and a domain name, separated by the '@' sign. Besides lowercase letters, the email may contain one or more '.' or '+'. For example, in "[email protected]", "alice" is the local name, and "leetcode.com" is the domain name. If you add periods (.)…
-
Mastering Apache Kafka: How Kafka Compares with Other Messaging Systems Like RabbitMQ or ActiveMQ
•
How Kafka Compares with Other Messaging Systems Like RabbitMQ or ActiveMQ Kafka is often compared to other messaging systems like RabbitMQ and ActiveMQ because they all serve the same purpose: enabling communication between applications through message passing. However, Kafka differs significantly from these systems in terms of architecture, scalability, throughput,…
-
Mastering Apache Kafka: The Ultimate Guide to Efficient Data Streaming
•
7-day learning plan 掌握 Apache Kafka：高效数据流的终极指南 The Ultimate Guide to Efficient Data Streaming Kafka has emerged as a leading solution for managing real-time data streams across various industries. In this blog, we’ll break down Kafka’s core functionality, compare it to real-world analogies, and dive into key features with code examples.…
-
LeetCode: 27 Remove Element
•
Given an integer array nums and an integer val, remove all occurrences of val in nums in-place. The relative order of the elements may be changed. Since it’s impossible to change the length of the array in some languages, you must instead have the result placed in the first part…
-
LeetCode: 58 Length of Last Word
•
Given a string s consisting of words and spaces, return the length of the last word in the string. A word is a maximal substring consisting of non-space characters only. Example Input: s = "Hello World" Output: 5 Explanation: The last word is "World" with length 5. Input: s =…
-
LeetCode: 263 Ugly Number
•
An ugly number is a positive integer whose prime factors are limited to 2, 3, and 5. Given an integer n, return true if n is an ugly number. Example Input: n = 6 Output: true Explanation: 6 = 2 × 3 Input: n = 8 Output: true Explanation: 8…
-
Algorithms 101: Max Heap
•
A Comprehensive Guide to Max Heap: Understanding and Using Max Heaps Effectively 最大堆的全面指南：理解和有效使用最大堆 Introduction / 介绍 In computer science, heaps are a fundamental data structure used to manage and retrieve elements efficiently, especially in scenarios that require frequent access to the largest (or smallest) elements. A max heap is a…
-
LeetCode: 1046 Last Stone Weight
•
You are given an array of integers stones where stones[i] is the weight of the i-th stone. We are playing a game with the stones. On each turn, we choose the two heaviest stones and smash them together. Suppose the heaviest stone has a weight x and the second heaviest…
-
Algorithms 101: How to Convert an Iterative Approach to a Recursive Approach
•
How to Convert an Iterative Approach to a Recursive Approach 如何将迭代方法转换为递归方法 Key Steps for Conversion 转换的关键步骤 Identify the Looping Condition 确定循环条件 Iterative Approach: Look for the looping mechanism, typically a for or while loop. This loop is often used to process elements in a sequence or range. 迭代方法：寻找循环机制，通常是 for 或…