The Mutex Club: How (and Why) to Build a Thread-Safe LRU Cache
The Thread-Safe LRU Cache, Deconstructed So you want to join the Mutex Club—the secret society of devs who actually ship high-performance…
The Dining Philosophers Problem: When Concurrency Goes From Fine Dining to Food Fight
Hungry for Answers: The Dining Philosophers Problem 🍽️ Picture this: five intellectuals, a bunch of forks, and way too much time to overthink.…
The O(n) Club: Unique Paths II—Help, My Robot Can’t Even (LeetCode 63 Edition)
The O(n) Club: Unique Paths II—Help, My Robot Can’t Even (LeetCode 63 Edition) ⚡ TL;DR You’re coding a grid-crawling robot, but…
The O(n) Club: Unique Subsets With Twins (How to Uninvite Duplicate Guests)
The O(n) Club: Unique Subsets With Twins (How to Uninvite Duplicate Guests) ⚡ TL;DR Need to find every combo of numbers in an array (even if…
The Mutex Club: The Readers-Writers Conundrum Driving Developers Insane
The Mutex Club: The Readers-Writers Conundrum Driving Developers Insane Ever tried juggling ten SELECTs and a lone UPDATE without watching…
The Mutex Club: Producer-Consumer with BlockingQueue (No Lock Drama)
Key Insights # BlockingQueue as your thread bouncer Java’s BlockingQueue (java.util.concurrent) is the no-drama handoff between producers and…
The O(n) Club: Wildcard Matching: How to Outsmart Your Inner Greedy Asterisk
The O(n) Club: Wildcard Matching—How to Outsmart Your Inner Greedy Asterisk ⚡ TL;DR This isn’t regex, it’s chaos—Wildcard Matching…
The O(n) Club: Insert Interval: The Algorithmic Family Reunion You’ll Never Escape
The O(n) Club: Insert Interval — The Algorithmic Family Reunion You’ll Never Escape ⚡ TL;DR You’re handed a bunch of…
The Mutex Club: Mastering Thread-Safe Logging in Microservices
Key Insights # Thread-safe logging prevents a log soup When microservices spin up dozens of threads, logging without locks is like letting ten…
The Mutex Club: Semaphore vs. Rate Limiter – Who Gets to Play Traffic Cop?
Semaphores, Rate Limiting, and Why Your API Isn’t a Free-For-All Ever tried hitting a public API during peak hours, only to watch your…