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Vicente G. Reyes6d ago • 3 min read
How I Caught and Fixed an N+1 Query in My Django REST API
Every performant API eventually runs into the same silent killer: the N+1 query problem. It doesn't....
#python#django#algorithms
6 2
Augusts Bautra4d ago • 4 min read
Thoughts on Codingame 2026 Spring challenge
Trolls in woods be choppin'
#ai#algorithms#gamedev#ruby
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Cassidy Williams5d ago • 3 min read
A simple clustering algorithm for lists
I’ve been experimenting with a human-friendly way to cluster list values using reversals of...
#algorithms#sorting
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gyani3d ago • 9 min read
How a photo-blind dating engine actually ranks people (the TypeScript)
Last post I argued that the matcher in our dating app cannot read photos because the TypeScript type...
#algorithms#opensource#showdev#typescript
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Rosario De Chiara3d ago • 5 min read
Smart multifacet filters in JS using Bitmaps
Introduction Modern frontend applications are starting to look less like simple view...
#frontend#ui#algorithms#ux
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Deeshan Sharma3d ago • 5 min read
How I calculate overtime pay across midnight — the edge cases most time-tracking apps get wrong
Here's a scenario that most time-tracking apps handle wrong: you work from 22:00 on a Friday and...
#productivity#typescript#javascript#algorithms
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Haji Rufai3d ago • 6 min read
Building a Vector Search Engine from Scratch in Python (Flat, IVF, HNSW)
Every AI application — from ChatGPT plugins to recommendation engines — relies on vector search. But...
#python#machinelearning#database#algorithms
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Naimur Rahman6d ago • 14 min read
DSA Application in Real Life: How Git Diff Works: LCS Intuition, Myers Algorithm, and Real Code Changes
The Algorithm Hiding Behind git diff You've run git diff hundreds of times. Red lines....
#git#datastructures#algorithms#programming
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azqzazq15d ago • 3 min read
Beyond Brute Force: Building LXPEN, a Memory-Assisted NTLM Exploration Engine
Modern password cracking tools are incredibly fast. On modern GPUs, tools like Hashcat can process....
#algorithms#cybersecurity#security#tooling
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Prakhar Srivastava4d ago • 7 min read
Binary Search Tree Explained: All Operations From One Rule
Most BST tutorials teach search, insert, and delete as three procedures. You memorise one, then the....
#algorithms#career#leetcode#datastructures
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Septim Labs6d ago • 6 min read
I read the X (Twitter) algorithm source for 4 days and built a Claude Code sub-agent that scores drafts before posting
Twitter's recommendation algorithm has been open-source since March 2023. I spent four days reading....
#agents#algorithms#claude#opensource
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Prakhar Srivastava6d ago • 7 min read
Big O Notation Explained: Derive It, Don't Memorize It
You can recite that binary search is O(log n) and nested loops are O(n²). That recitation stops...
#leetcode#career#algorithms#interview
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Prakhar Srivastava3d ago • 7 min read
Binary Tree Recursion in Interviews: The Call Stack Diagnostic
I've watched plenty of engineers explain binary tree traversals on a whiteboard and then freeze five...
#learning#leetcode#interview#algorithms
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Prakhar Srivastava4d ago • 7 min read
Binary Tree Interview Problems: 6 Traversal Patterns, 15 Problems
The default tree prep is sorting LeetCode's tree tag by acceptance rate, doing the top 40, and hopin...
#algorithms#career#leetcode#beginners
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Mark2d ago • 5 min read
Encoding FIFA’s 495 third-place scenarios for the 2026 World Cup
I expected the 2026 World Cup bracket to be a sorting problem. It turned out to be a sorting proble...
#algorithms#computerscience#programming#showdev
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Prakhar Srivastava6d ago • 5 min read
BFS vs DFS: The Invariant Decides, Not Your Preference
Two algorithms visit every node in a graph. Pick whichever you remember and most of the time nothing...
#algorithms#leetcode#career#programming
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Gregory5d ago • 2 min read
I Solved 512+ LeetCode Problems, and Here’s What I Learned 🧠
Hi everyone, my name is Greg. I've been working in web development since 2020. A few years ago, I...
#leetcode#programming#algorithms#computerscience
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Amanuel Demissie6d ago • 2 min read
Week 7: How GusLift Handles Payment Without a Payment Processor
#mobiledevelopment #backenddevelopment #database #infrastructure Campus rideshare is informal....
#algorithms#backend#mobile#sideprojects
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Amar Gul5d ago • 1 min read
Linked Lists Finally Simple — Why Insert is O(1) When Arrays Are O(n)Uses This Algorithm for .sort()
Most developers understand arrays intuitively. But Linked Lists feel abstract until you see them...
#react#javascript#algorithms#tutorial
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Lorenzo Battilocchi1h ago • 3 min read
The Algorithmic Yes-Man: Why AI Constantly Agrees with You
It can feel a bit eerie when an artificial intelligence system effortlessly nods along with your...
#ai#algorithms#sycophancy#learning
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Vitalii Kiro2d ago • 5 min read
Vitalii Kiro: The Drone War Is Over. The War of Algorithms Begins
When people say that Ukraine has become a “testing ground” for Western technologies, there is some.....
#ai#algorithms#machinelearning#news
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Jatin5d ago • 3 min read
Most People Misunderstand Binary Search on Answer
Most people think Binary Search is about searching arrays. Wrong. Binary Search on Answer is...
#algorithms#computerscience#cpp#dsa
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Aamir Sahil4d ago • 1 min read
The Hidden Problem Behind Technical SEO Crawlers: URL Explosion
One of the biggest challenges in large-scale website crawling isn’t crawling itself. It’s...
#algorithms#performance#systemdesign#webscraping
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Aethel-Systems2d ago • 2 min read
Text Compression Still Wastes Bits on Structure
We have become far too comfortable with the 8-bit byte. In modern systems, we treat the byte as the...
#compression#algorithms#c#opensource
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