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Show HN: Big O Notation – An Interactive Guide

https://sbondaryev.dev/articles/big-o-notation
3•sbondaryev•1d ago
Hi HN,

I built this interactive guide to help build intuition for time complexity.

There is already a lot of writing on this topic here (e.g. [1], [2]), so I tried to keep the explanation minimal and focus on examples you can interact with.

The visualizer runs your JavaScript code, tracks `op()` markers as `n` increases, and plots the growth curve in real-time.

I also tried to visualize the Master Theorem by mapping recursion trees to the work done at each level.

I'd love to hear your feedback on the visualizations or if you find the Master Theorem section intuitive.

[1] https://news.ycombinator.com/item?id=5655075 [2] https://news.ycombinator.com/item?id=45002182

AI Keeps Building the Same Purple Gradient Website

https://prg.sh/ramblings/Why-Your-AI-Keeps-Building-the-Same-Purple-Gradient-Website
1•satvikpendem•49s ago•0 comments

Pittsburgh Post-Gazette Announces It Will Cease Operations

https://www.nytimes.com/2026/01/07/business/media/pittsburgh-post-gazette-closing.html
1•bookofjoe•51s ago•1 comments

The Silence of the LLaMbs: Getting LLMs to Shut Up

https://ossa-ma.github.io/blog/silence-of-the-llambs
2•ossa-ma•1m ago•0 comments

Columbia Univ. Center on Global Energy Policy: Q&A on US Actions in Venezuela

https://www.energypolicy.columbia.edu/qa-on-us-actions-in-venezuela/
1•TMWNN•2m ago•0 comments

Key open source challenges in developing countries (2023)

https://opensource.com/article/23/4/challenges-open-source-developing-countries
3•devonnull•3m ago•0 comments

EMF Exposure from a Substation Could Be Cause of 49ers' Tendon Rupture Epidemic

https://peteranthonycowan.substack.com/p/could-chronic-emf-exposure-from-a
1•CGMthrowaway•3m ago•0 comments

Show HN: MakeMe – A Makefile tool rewritten from Fish to Go

1•OakNinja•4m ago•0 comments

Show HN: Game Boy Release Timelines

https://gameboyessentials.com/timelines
1•philistine•5m ago•0 comments

Automated testing without the setup: Mechasm.ai Beta

https://mechasm.ai
1•sleepless02•6m ago•1 comments

Ask HN: Job seekers, what's working / not working?

1•Jabbs•7m ago•0 comments

OpenAI adds ChatGPT Health for medical questions

https://www.axios.com/2026/01/07/chatgpt-health-tab-apple-fitness-apps
1•FergusArgyll•8m ago•1 comments

The Dream of the Universal Library

https://asteriskmag.com/issues/12-books/the-dream-of-the-universal-library
1•ilamont•11m ago•0 comments

Show HN: Grammar of Graphics CLI tool made in Rust

https://github.com/williamcotton/gramgraph
1•williamcotton•13m ago•0 comments

Infinite Canvas: Building a Seamless, Pan-Anywhere Image Space – Codrops

https://tympanus.net/codrops/2026/01/07/infinite-canvas-building-a-seamless-pan-anywhere-image-sp...
1•rcarmo•13m ago•0 comments

OpenAI to Buy Pinterest? A Strategic Analysis

https://nekuda.substack.com/p/openai-to-buy-pinterest-heres-what
1•ilamont•14m ago•1 comments

What are we to make of "AI replacement"?

https://joshuagans.substack.com/p/what-are-we-to-make-of-ai-replacement
1•paulpauper•15m ago•0 comments

Lua is a pretty good config language

https://til.andrew-quinn.me/posts/lua-is-a-pretty-good-config-language/
1•hiAndrewQuinn•16m ago•0 comments

ActorAgents

https://tailrecursion.com/~alan/ActorAgents.html
1•wooby•16m ago•0 comments

Claude Code CLI Broken

https://github.com/anthropics/claude-code/issues/16673
14•sneilan1•17m ago•4 comments

Show HN: Startup Simulator – AI Choose Your Own Adventure

https://startup-simulator-beta.vercel.app/
1•baristaGeek•20m ago•0 comments

Dora 2025: Year in Review

https://dora.dev/insights/dora-2025-year-in-review/
1•cebert•24m ago•0 comments

Unit testing your code's performance, part 1: Big-O scaling

https://pythonspeed.com/articles/big-o-tests/
2•todsacerdoti•25m ago•0 comments

Tailscale state file encryption no longer enabled by default

https://tailscale.com/changelog
29•traceroute66•26m ago•12 comments

Show HN: Prompt Tower – build and visualize your context

https://prompttower.com/
3•ramoz•26m ago•0 comments

Free health summaries from the top creators

https://summabase.com/en
1•luis13hgr•27m ago•0 comments

Ledger customers impacted by third-party Global-e data breach

https://www.bleepingcomputer.com/news/security/ledger-customers-impacted-by-third-party-global-e-...
1•DGAP•30m ago•0 comments

Why Musk says it would be a 'distraction' for SpaceX to go to Mars this year

https://www.morningstar.com/news/marketwatch/20260107182/why-elon-musk-now-says-it-would-be-a-dis...
3•voxadam•33m ago•0 comments

Intel's Best Product in Years – Panther Lake Announcement [video]

https://www.youtube.com/watch?v=bG68OBQ3x9Y
6•tester756•34m ago•1 comments

A minimal keyboard key effect with CSS

https://pjg1.site/kbd-css.html
2•birdculture•35m ago•0 comments

Claude Code Emergent Behavior: When Skills Combine

https://vibeandscribe.xyz/posts/2025-01-07-emergent-behavior.html
9•ryanthedev•36m ago•2 comments