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Show HN: Visual Learning Tool For Abstract Problem Solving Through DSA Puzzles

https://pqdsa.com?welcome
1•_dragonguy•1h ago
I've been developing this idea for some time now when looking for a way to connect visual examples to abstract problems or concepts in computing and software. This tool is largely an exercise in pattern recognition and problem solving that develops critical interview and professional skills. This is my first public "version"; so please any and all feedback is much appreciated. I hope you enjoy what has come of the idea so far. Most of all enjoy stimulating your mind while having fun and maybe learn a thing or two along the way.

Codegraff: 40× leaner file tools for your coding agent

https://codegraff.com
2•doppp•4m ago•0 comments

Making 768 servers look like 1

https://planetscale.com/blog/making-768-servers-look-like-1
1•hisamafahri•6m ago•0 comments

Easy acceleration with distributed array on interactive AI supercomputer [video]

https://www.youtube.com/watch?v=rqmJk9aIJ6I
2•teleforce•9m ago•0 comments

Null Handling in SQLite

https://www.sqlite.org/nulls.html
2•rzk•9m ago•1 comments

Making the internet fun again: Stumble Upon v2

https://whip-feed.agam-92b.workers.dev/
2•samagra14•9m ago•0 comments

The Zen of Parallel Programming: The Big I and the Global Sum URL

https://smolnero.com/posts/the-zen-of-parallel-programming-the-big-i-and-the-global-sum
2•edgar_ortega•9m ago•0 comments

Glowing Pickle Demonstration

https://en.wikipedia.org/wiki/Glowing_pickle_demonstration
2•gregsadetsky•13m ago•0 comments

Show HN: Git-remote-iroh – Ephemeral P2P Git remote

https://github.com/magik6k/git-remote-iroh
2•devttyeu•13m ago•0 comments

Identifying JDK value class candidates

https://mail.openjdk.org/archives/list/core-libs-dev@openjdk.org/thread/Y72NRXM7KYBX43OKYBQMVKOZD...
2•Tomte•17m ago•0 comments

Guerrilla London Bus Ads Mock Kylie Jenner's Meta Glasses Campaign

https://hyperallergic.com/guerrilla-london-bus-ads-mock-kylie-jenners-meta-glasses-campaign/
3•decimalenough•18m ago•0 comments

Familiar – Local AI Workspace with Chat, Notes, Wiki, and Automations

https://github.com/sixvolts/familiar
2•six_volts•19m ago•0 comments

Inside Anthropic's state-by-state plan to ratchet up AI rules

https://www.politico.com/news/2026/07/15/inside-anthropics-state-by-state-plan-to-ratchet-up-ai-r...
2•bluepeter•22m ago•0 comments

RuntimeWire – Startup intelligence for the AI economy

https://runtimewire.com/
2•enjoyyourlife•26m ago•0 comments

A Manifesto for Preserving Content on the Web (2019)

https://jeffhuang.com/designed_to_last/
2•downbad_•27m ago•0 comments

Might doomscrolling cause our commitment muscles to atrophy?

https://chrisyeh.com/2026/07/commitment-is-declining-and-why-you-should-resist.html
3•chrisyeh•27m ago•1 comments

1,300 Beautiful Wildlife Illustrations from the 19th Century Now Restored

https://www.openculture.com/2026/07/explore-1300-beautiful-wildlife-illustrations-from-the-19th-c...
2•gslin•30m ago•0 comments

OpenAI and Guardian Media Group launch content partnership

https://openai.com/index/openai-and-guardian-media-group-launch-content-partnership/
2•wertyk•31m ago•0 comments

Linux kernel won't be anti-AI – Linus Torvalds

https://lore.kernel.org/all/CAHk-%3Dwi4zC%2BZe8e%2Bp3tMv8TtG_80KzsZ1syL9anBtmEh5Z40vg@mail.gmail....
6•haritha1313•31m ago•2 comments

I Collect Blog Statistics, Respectfully

https://onlinegoddess.net/2026/07/how-i-collect-blog-statistics-respectfully/
3•cyb0rg0•34m ago•1 comments

Roman Empire GDP per Capita Map Shows That Romans Poorer Than Countries Today

https://brilliantmaps.com/roman-empire-gdp/
2•mathattack•36m ago•0 comments

Sony-Owned Crunchyroll Is Now Kneecapping Physical Anime Sales

https://www.gamespot.com/articles/sony-owned-crunchyroll-is-now-kneecapping-physical-anime-sales/
2•jmsflknr•38m ago•0 comments

GitHub Copilot: your AI pair programmer (2021)

https://github.blog/news-insights/product-news/introducing-github-copilot-ai-pair-programmer/
2•kmlsec•39m ago•0 comments

Can AI build a jet engine? JARVIS Challenge tests AI copilots

https://news.mit.edu/2026/can-ai-build-jet-engine-jarvis-challenge-tests-ai-copilots-in-tough-tec...
3•ilamont•44m ago•0 comments

Open Source, Free Tier Capable Whispr Using Cloudflare AI

https://github.com/PrestigePvP/Voicebox
2•TreDub•45m ago•0 comments

Where Americans Thrive in Europe

https://palombo.substack.com/p/where-americans-actually-thrive-in
6•znnajdla•47m ago•0 comments

Fleet: Hierarchical Task-Based Abstraction for Megakernels on Multi-Die GPUs

https://arxiv.org/abs/2604.15379
4•matt_d•47m ago•0 comments

The Shape of Apps

https://parakeet.co/blog/the-shape-of-apps/
3•OuterVale•48m ago•0 comments

AI Coach for Creators

https://getboom.ai
2•MakeSenseAna•49m ago•1 comments

Making colordx fast: V8 lessons from a color library

https://dkryaklin.com/blog/colordx-v8-performance
2•matthberg•49m ago•0 comments

Ask HN: Is consciousness fundamentally a process of preserving identity?

3•diarrheaasmr•50m ago•0 comments