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Palo Alto Networks Plans to Buy Embrace in Observability Push

https://www.morningstar.com/news/dow-jones/202607219336/palo-alto-networks-plans-to-buy-embrace-i...
1•pranay01•1m ago•0 comments

Measuring the Performance Cost of High Availability in Postgres

https://clickhouse.com/blog/postgresbench-ha
1•saisrirampur•4m ago•0 comments

Middleware that catches when LLM conversations slowly drift off-topic

https://github.com/ojki74/hallucinatoff
1•ojki•9m ago•0 comments

Feral cats fail at urban rodent control (2018)

https://wildlife.org/rats-feral-cats-fail-at-urban-rodent-control/
2•vector_spaces•9m ago•0 comments

Now on the American Road: Bulletproof Cars

https://www.nytimes.com/2026/07/20/style/armored-cars-bulletproof-american-drivers.html
1•bookofjoe•10m ago•1 comments

The Visual 6502

http://visual6502.org/JSSim/index.html
1•infiniteregrets•11m ago•0 comments

How working out at the gym replaced the home improvement project

https://www.cnn.com/2026/07/23/business/gyms-millennials-gen-z-equinox
1•mooreds•15m ago•0 comments

China won the car wars with cheap EVs loaded with technology

https://www.rnz.co.nz/news/world/782063/how-china-won-the-car-wars-with-cheap-evs-loaded-with-tec...
8•billybuckwheat•20m ago•1 comments

The Online MBA

https://theonline.mba
2•multiplesauces•20m ago•1 comments

The Elm Architecture, Without Elm

https://bichanna.github.io/posts/tea-time/
2•theanonymousone•20m ago•0 comments

Sherlock Search – find anyone by photo

https://sherlocksearch.net
1•thefirstname322•20m ago•0 comments

AI bet goes awry: Oracle fires 21,000 employees

https://www.jpost.com/business-and-innovation/tech-and-start-ups/article-903442
3•willmarch•21m ago•0 comments

About 1 in 4 workers keep unwanted jobs for health insurance, poll finds

https://www.washingtonpost.com/business/2026/07/24/about-1-4-workers-keep-unwanted-jobs-health-in...
2•bookofjoe•25m ago•1 comments

Show HN: Verified B2B leads with the reason to reach out now

https://madleadz.com/
1•not_wowinter14•25m ago•0 comments

CodeCrafters – Build Your Own <X> repo

https://github.com/codecrafters-io/build-your-own-x
1•matthberg•25m ago•0 comments

Ukraine's Kill Zone

https://www.reuters.com/graphics/UKRAINE-CRISIS/KILL-ZONE/znpnojmknvl/
4•mathgenius•28m ago•0 comments

There isn't a single consumer Wi-Fi router that is 100% American-made

https://www.engadget.com/2218707/no-100-percent-american-made-wifi-router/
1•speckx•29m ago•0 comments

OpenAI's Dean Ball on Chinese Open-Weight Models

https://twitter.com/deanwball/status/2078133895766114412
2•matt_daemon•29m ago•0 comments

India's CJP Protests Meet Internet Shutdowns and Pervasive Surveillance

https://www.techpolicy.press/indias-cjp-protests-meet-internet-shutdowns-and-pervasive-surveillance/
2•sid_talks•32m ago•0 comments

Canva uses S3 for logged-in session management

https://www.canva.dev/blog/engineering/session-revocations-at-scale/
3•birdculture•32m ago•0 comments

Quick Followup on the Truth Social Thing

https://www.businesslawprofessors.com/2026/07/quick-followup-on-the-truth-social-thing/
3•petethomas•33m ago•0 comments

Ask HN: What Linux distro do you daily drive?

5•addajones•33m ago•7 comments

FreeBSD ports frozen after someone commits the 150MB Linux Copilot binary

https://www.osnews.com/story/145593/freebsd-ports-frozen-after-someone-commits-the-entire-150mb-l...
2•iamnothere•33m ago•0 comments

Light Flip Phone

https://www.thelightphone.com/lightflip
3•agilek•35m ago•0 comments

Recent Modeling Systematically Underestimates Warming from IMO2020 Shipping Regs

https://egusphere.copernicus.org/preprints/2026/egusphere-2026-2654/
1•littlexsparkee•35m ago•0 comments

A DEX aggregator whose quotes are computed on-chain (free API, no key)

https://blazephoenix.xyz/
1•mitraxyz•36m ago•1 comments

Show HN: SQL service for tables with billions of rows or up to 1M columns

2•synsqlbythesea•38m ago•0 comments

When AI Attacks AI: Why Every System Needs a Guard

https://medium.com/@alanscottencinas/when-ai-attacks-ai-why-every-system-needs-a-guard-8ba46f904378
1•encinas88•39m ago•0 comments

Four takeaways from our investigation into a hidden gene-editing death

https://www.science.org/content/article/four-takeaways-our-investigation-hidden-gene-editing-death
2•sbulaev•41m ago•0 comments

Patreon Lays Off 20% of Employees as Part of 'Painful' Restructuring

https://variety.com/2026/biz/news/patreon-cuts-20-percent-of-employees-painful-restructuring-1236...
5•adamhowell•41m ago•0 comments
Open in hackernews

I solved almost all of free problems on LeetCode using AI

https://old.reddit.com/r/leetcode/comments/1krg7by/i_solved_almost_all_of_free_problems_on_leetcode/
3•tevlon•1y ago

Comments

cratermoon•1y ago
I'm sure all the free problems from LeetCode are in the training sets, so I don't think this is much of a flex.
tevlon•1y ago
i was thinking the same. And i am sure it is in the training set, but i couldn't solve 10 hard problems. Also, most of the hard problems, the LLMs weren't able to solve in one shot. How do you explain this?
cratermoon•1y ago
There are many more correct answers to the easy problems than to the hard ones. Thus the LLM is more likely to hit upon the correct completion for them.
tevlon•1y ago
makes sense
whobre•1y ago
Alright, but how can this exercise help them pass an interview? The point of leetcode is to memorize the solutions so one can do well in an interview; yes, I agree it’s ridiculous.