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2616. Minimize the Maximum Difference of Pairs

Given an integer array and a number p, the task is to find p pairs of indices such that the maximum difference among the pairs is minimized.
The approach involves sorting the array and using binary search to find the smallest possible maximum difference.
Pairs are formed by selecting adjacent elements with the smallest difference to minimize the overall maximum difference.
Binary search is used to efficiently determine the smallest value that allows for at least p valid pairs.
Greedy pair formation ensures that pairs are optimally selected to meet the maximum difference criteria.
The provided PHP code snippet showcases the implementation of the solution using binary search and greedy techniques.
Initial checks are performed, the array is sorted, and binary search is executed to find the optimal maximum difference.
The canFormPairs function validates if the given mid value allows forming at least p valid pairs.
The binary search loop adjusts the search space based on the feasibility of forming enough pairs for the current mid value.
This efficient approach combines binary search and greedy selection to minimize the maximum difference among pairs.

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Medium

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These new Windsurf updates are completely insane for developers

Windsurf released a new Wave 10 update with revolutionary features aimed at developers.
One of the major updates is the Planning Mode that enhances the AI's understanding of the codebase and project goals.
The agent now comprehends both current and future project aspects, which significantly improves task accuracy.
Cascade conversations now include a live Markdown plan for shared planning between developers and AI, allowing task prioritization and goal setting.
If changes are made to the plan, the AI will take action accordingly.
The update is expected to have a profound impact on coding efficiency and accuracy.

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Medium

216

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How to 10x your vibe coding with AI

Journalist explores using pseudocode as a bridge for human-computer communication, delving into its benefits and applications.
Pseudocode allows for clear, unambiguous communication with AI, enabling users to think like computers and systems.
The article highlights the importance of pseudocode in documenting, defining actions, making decisions, and managing processes.
It emphasizes pseudocode's role in AI understanding and translating processes into various programming languages.
Pseudocode simplifies complex tasks into structured processes, enhancing clarity, efficiency, and adaptability in programming.
The piece discusses how pseudocode can empower users in varied scenarios from daily habits to business operations.
It showcases the versatility and significance of pseudocode in fostering algorithmic thinking and AI interaction.
AI's proficiency in translating well-structured pseudocode across programming languages highlights its pivotal role in future programming approaches.
The article concludes with a call to embrace pseudocode as a foundational skill for effective algorithmic communication in an AI-driven world.
Pseudocode serves as a lingua franca for communicating algorithmic concepts, bridging the gap between human intent and AI execution.

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Medium

299

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The JavaScript Myths Every Developer Believes — Busted!

JavaScript is a widely-used programming language with common myths and misconceptions.
One myth is that JavaScript is only used for websites and web apps, but it has evolved beyond that.
With tools like Node.js, JavaScript is used for server-side applications, command-line tools, APIs, and IoT applications.
Platforms like React Native enable building mobile apps with JavaScript.
JavaScript is now a general-purpose programming language.
The article debunks common JavaScript myths and sheds light on its versatility.
Myth: JavaScript is limited to web development.
Reality: JavaScript is used for various applications beyond the web.
Busted: JavaScript is now a versatile language for diverse development needs.

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Insider

138

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GitHub's CEO says startups can only get so far with vibe coding

GitHub's CEO, Thomas Dohmke, emphasized the importance of developers for startup success at VivaTech in Paris.
Dohmke stated that startups using AI tools for launching still need developers to build complex systems to attract investors.
While AI can lower the barrier to entry for startups, scaling requires technical expertise, according to GitHub's CEO.
Observing a shift in the market, Dohmke noted increasing interest in AI among companies.
AI coding assistants can help non-technical founders create startups with minimal teams, but investors might question their uniqueness.
Startups heavily reliant on coding assistants may struggle to demonstrate significant value to investors, emphasized Dohmke.
Non-technical founders may find it challenging to scale startups without developers to build complex systems.
Dohmke highlighted the importance of deeper understanding and quality development over quick, inexpensive measures for startup value.
GitHub, known for its Copilot tool providing coding suggestions, emphasizes the role of human developers despite AI integration.
Vibe coding tools raise questions regarding the demand for software developers and essential skills in the AI era.
Dohmke believes that every child should learn coding despite the AI-driven engineering boom, underscoring the importance of self-reliant coding.
Software engineers need to balance using AI prompts effectively while knowing when to rely on personal coding skills, per Dohmke.
Dohmke advised against wasteful prompting skills, emphasizing the importance of knowing when not to use AI prompts.
The article discusses GitHub's position under Microsoft and the implications of vibe coding on the software development landscape.
Thomas Dohmke's insights highlight the crucial role of developers and human expertise in creating valuable startups.

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Medium

246

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Performant ArkTS Programming: Best Practices for High-Efficiency Code

ArkTS offers developers a powerful, TypeScript-like syntax with optimizations for better runtime performance.
Writing performant applications with ArkTS requires awareness of low-level optimizations.
Real-world performant programming practices include avoiding mixing integer and floating-point types.
Arithmetic overflow should be avoided as it can degrade performance.
Extract constants outside loops to reduce attribute lookup costs.
Optional parameters in hot paths should be avoided to prevent extra undefined checks.
Sparse arrays are slower to access; initialize arrays with contiguous elements for better performance.
Union arrays with mixed types should be avoided to maintain performance.
Adopting these tips can lead to faster, leaner, and more efficient applications when using ArkTS or HarmonyOS.
Developers can achieve significant performance improvements by making small, focused changes.
Happy coding!

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Medium

186

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Firebase Studio: Your Perfect Full Stack Picky Companion

Firebase Studio serves as a valuable companion for developers, providing guidance and uncovering potential pitfalls in project development.
It acts as a sounding board, devil's advocate, and a source of inspiration to help developers validate their ideas.
The tool aids in unearthing hidden complexities, exploring alternative approaches, and creating remarkable solutions.
Firebase Studio assists in maintaining focus on the bigger picture during coding and brainstorming sessions.
It helps anticipate unexpected challenges in software development, avoiding critical bugs and issues post-launch.
The tool prompts developers to consider edge cases when generating schemas and backend logic, enhancing the robustness of the solutions.
It challenges developers' ideas, forces justifications of choices, and identifies potential weaknesses, leading to early validation and prevention of future debugging work.
Firebase Studio is not a replacement for developers' expertise but a tool that enhances their problem-solving abilities and strategic thinking.
It serves as a skeptical partner and idea generator, supporting developers in reaching their full potential.
Developers can rely on Firebase Studio for assistance with features like a magic link authentication system, prompting considerations of various scenarios and ensuring robust implementation.

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Medium

307

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I Made a Trading Bot. Now What?

The author shares their experience of creating a trading bot without prior knowledge and the challenges faced.
The trading bot resulted in confusion, trial-and-error, with instances of not trading or making poor trading decisions.
The author started with no knowledge and struggled with errors in the code when developing the bot.
Initially, the bot did not execute trades even when market conditions were met.
After multiple attempts at refining the bot, it started trading excessively, closing trades at slight losses.
Despite the challenges, the author found satisfaction in the process of building the bot themselves.
There is a dilemma between continuing to refine the bot or giving up on the project entirely.
The author plans to monitor the bot's performance, make adjustments, and continue running it.
The experience of debugging and improving the bot has been rewarding for the author.
A lesson learned is to test the bot extensively using demo accounts before trading with real money.
The author emphasizes enjoying the learning process despite the challenges faced.

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Dev

203

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No Recursion, No Table, Still DP? My Shift From Brute Force to Intuition

The author reflects on their journey with Dynamic Programming (DP) and their shift in thinking from a recursive approach to a more intuitive one.
Initially, the author thought DP involved recursion, memoization, tabulation, and space optimization, but a recent problem challenged this pattern.
The problem involved finding the maximum of the minimum for each window size in an array.
The author's initial brute-force solution failed, leading them to consider a new perspective.
By fixing elements instead of window sizes, the author was able to determine the range of window sizes where an element is the minimum.
This approach utilized monotonic stacks to optimize the solution.
The author realized that DP is more about avoiding repeated work and finding efficient ways to reuse calculations.
They acknowledge that DP can appear in various forms, such as using stacks, loops, or different problem-solving approaches.
The author started noticing patterns like utilizing prefix sums, monotonic stacks, reevaluating nested loops, and reusing information.
They emphasize that DP is not just about following a set formula, but about approaching problems cleverly.
The author humorously reflects on their previous perception of DP and how they have evolved to focus on smarter thinking over traditional methods.
Despite facing challenges and TLE errors in the process, the author appreciates the growth and change in their problem-solving mindset.
The author invites others to learn more about the problem that altered their approach.
Overall, the journey showcases a shift from rigid DP methodologies to a more adaptable and creative problem-solving mindset.
DP is portrayed as a means of avoiding redundant work and approaching challenges in innovative ways.
The author concludes by highlighting the importance of thinking strategically and efficiently in problem-solving endeavors.

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Dev

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🏡 How I Turned My Old Laptop into a Web Server to Host My Portfolio Website

A person shares their experience of turning an old laptop into a web server to host their personal portfolio website.
The guide not only provides information but also shares a story of repurposing old technology, saving money, and gaining valuable skills.
The individual chose to self-host their website by repurposing an old laptop that had low resale value.
Skills learned include building a website with React & Node, using Docker for containerization, securing it with Cloudflare Tunnel, tracking visitors with Google Analytics, and gaining devops skills.
The tech stack used includes React.js, Node.js, CSS3, Docker, Nginx, and Cloudflare Tunnel for secure external access.
The setup involves cloning a repository, installing dependencies, and configuring the Google Analytics Measurement ID.
Containerization with Docker simplifies deployments and allows for live updates through volume mounts.
To make the site accessible globally, the guide compares Cloudflare Tunnel with port forwarding, with Cloudflare Tunnel being preferred for security and flexibility.
Instructions for setting up Cloudflare Tunnel include installing, creating a tunnel, configuring, and binding DNS.
Analytics integration involves setting up Google Analytics to track visitors and using Cloudflare for real-time traffic insights.
The next step is SEO optimization, with details on improving site visibility and loading speeds.
Future posts will cover meta tags, schema markup, and speed optimization for better search engine rankings.
The guide includes references to the GitHub repository, Cloudflare Tunnel documentation, and integrating Google Analytics with React.

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2 Likes

Dev

135

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Day 12 - JavaScript Learning Blog: Chessboard Project!!

Developer built a simple 8x8 Chessboard project using HTML, CSS Grid, and JavaScript DOM manipulation.
JavaScript topics covered include DOM manipulation, loops, conditional statements, setAttribute() method, and CSS Grid for layout.
The project dynamically created the chessboard grid with alternating colors for each square.
Source code provided showcases the HTML, CSS, and JavaScript implementation.
Key learning points include generating HTML dynamically, using nested loops for layouts, conditional CSS styling through JS, and basic CSS Grid mastery.
Challenges included initially missing appendChild causing boxes not to appear, and misunderstanding grid styling, later corrected.
The project boosted confidence in DOM manipulation and conditional rendering in JavaScript.

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8 Likes

Dev

121

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This Week In React #238 : React Router, RSC, shadcn/ui, React Aria, Cosmos | iOS 26, JSI, Nitro, Windows, Tabs, PencilKit

This week in the React ecosystem is relatively calm but with interesting blog posts and releases.
React Native devs are working on iOS 26 Liquid Glass support and React Native 0.80.
JS ecosystem activities include Oxlint 1.0 release and various Node.js news.
React Router moving towards Open Governance with a community-driven approach.
Dan Abramov explains how Imports work in RSC module systems.
Interactive articles on Reactivity, useState with dependency array, URL Type-Safety, and Async Local Storage integration.
Recent releases include React Aria, Puck, Astro, React Cosmos, and TanStack Router updates.
React Suspense, Astro Integrations, and Plausible Analytics integration articles.
Various React-related talks, including common React Query mistakes and moving off React.
Node.js versions, Oxlint 1.0, Amaro 1.0, Jest 30, and WebKit in Safari 26 beta updates.

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Designbeep

164

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20 Pure CSS and Javascript Custom Cursor Effects (With Code)

Custom CSS cursors can enhance user experiences on websites.
They add a personalized and engaging touch to a website.
Implementing unique cursors can help differentiate a website and leave a lasting impression.
Custom cursors are a subtle detail that can elevate the overall user experience.
A collection of custom cursor examples from Codepen is showcased.
Examples include spotlight, satisfying curly, neon, circle, and ghost cursors.
Others include cursor libraries, particles cursor, sticky/stretching cursor, and more.
Developers are encouraged to test custom cursors across different browsers and devices.
It's important to ensure designs work well with touch interactions on mobile devices.
The post highlights the importance of considering custom cursors for website design.
Custom CSS cursors can subtly communicate a website's personality and attention to detail.
Unique cursors can turn a good user experience into a memorable one.
The Codepen examples provide inspiration for implementing custom cursors.
Designers can create custom cursor effects using a combination of CSS and Javascript.
The article encourages web developers to pay attention to the details like custom cursors.
Implementing custom cursors is a small yet impactful way to enhance website interactions.

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9 Likes

Dev

389

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How to Build Visually Cohesive Real-Time Interfaces in Phoenix LiveView Using Tailwind CSS

Phoenix LiveView allows for instant interactivity without a JS build chain or sprawling frontend stack.
Tailwind CSS complements LiveView by enabling inline expression of intent and consistent styling.
Tailwind's atomic utilities, no global cascade, and design tokens enhance visual cohesion in real-time interfaces.
Using Tailwind as a layout language simplifies structuring components and maintaining intent.
Dynamic state in LiveView allows for dynamic classes, offering perceptually faster updates.
Buttons with loading states and modals can be created without JavaScript, leveraging LiveView's re-rendering functionality.
Scaling design with tailwind.config.js allows for consistent UI updates across components.
Animations and attention to detail improve user experience in real-time interfaces.
Visual cohesion in real-time UIs is crucial for maintaining seamless experiences.
Tailwind CSS offers fast compilation, minimal CSS shipping, and LiveReload for instant style tweaks.
Building with HTML, Tailwind, and LiveView simplifies development and handling of UI state.
Tailwind techniques for LiveView enable building functional and exceptional interfaces efficiently.

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23 Likes

Medium

1.8k

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The Dark Side of JavaScript

JavaScript is a powerful and flexible language, but it comes with quirks and pitfalls that can catch developers off guard.
Even experienced developers can fall into the traps of JavaScript's less obvious issues, leading to unexpected bugs and performance problems.
The article discusses 7 shocking pitfalls of JavaScript that developers might not be aware of but should know to avoid.
One surprising pitfall is that NaN (Not-a-Number) is a number type in JavaScript and is not equal to itself.
NaN in JavaScript results from an invalid mathematical operation and can lead to confusion when comparing values.

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