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A visual introduction to big O notation

news.ycombinator.com Unknown 2025-11-05 08:39:36

Big O notation is a way of describing the performance of a function without using time. Rather than timing a function from start to finish, big O describes how the time grows as the input size increases. It is used to help understand how programs will perform across a range of inputs. In this post I'm going to cover 4 frequently-used categories of big O notation: constant, logarithmic, linear, and quadratic. Don't worry if these words mean nothing to you right now. I'm going to talk about them

Topics: function items return sum time

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Tech founder throws hat in California governor’s race

techcrunch.com Dominic-Madori Davis 2025-11-07 00:05:22

In Brief Tech founder Ethan Agarwal, who has raised tens of millions of dollars from VCs across two startups, is running for the 2026 California gubernatorial seat, as reported by Axios. Axios described Agarwal as a “Democrat who believes in capitalism.” He told the outlet he’s mainly concerned about the increased cost of living and doing business in the state, which has led to the departure of residents and other opportunities, such as film productions. California “could use some business an

Topics: agarwal axios business coterie raised

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Two smart ring brands will no longer be available to US shoppers (Update: Statement)

androidauthority.com Unknown 2025-11-07 04:42:37

Ultrahuman also tells Android Authority that it is fast-tracking a newly designed smart ring. You can read the full statement below: We welcome the ITC’s recognition of consumer-protective exemptions and its rejection of attempts to block the access of U.S. consumers. Customers can continue purchasing and importing Ring AIR directly from us through October 21, 2025, and at retailers beyond this date. What’s more, our software application and charging accessories remain fully available, after t

Topics: commission competition consumer patent ring

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Malicious Android apps with 19M installs removed from Google Play

bleepingcomputer.com Unknown 2025-11-07 05:37:22

Seventy-seven malicious Android apps with more than 19 million installs were delivering multiple malware families to Google Play users. This malware infiltration was discovered by Zscaler's ThreatLabs team while investigating a new infection wave with Anatsa (Tea Bot) banking trojan targeting Android devices. While most of the malicious apps (over 66%) included adware components, the most common Android malware was Joker, which researchers encountered in almost 25% of the analyzed apps. Once

Topics: anatsa apps google malicious malware

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Don't Expect New AirPods Max 2 at Apple's iPhone 17 Event, Report Says

cnet.com See Full Bio 2025-11-07 04:15:00

Some of us have been waiting for Apple to announce a new second-gen version of the AirPods Max, its high-end over-ear noise-canceling headphones that were released in December 2020. They were refreshed last year with USB-C connectivity, some new color options and USB-C audio in April of this year. But if a recent report by Bloomberg's Mark Gurman, who's usually a reliable Apple whisperer, proves accurate, we won't be seeing the AirPods Max 2 at Apple's iPhone 17 Event, which is likely to take pl

Topics: airpods apple audio max new

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Netflix sets opening dates for its destination entertainment hubs

engadget.com Unknown 2025-11-07 10:08:51

We now have the opening dates for Netflix's branded entertainment complexes that we first learned of in 2023. The 100,000-square-foot amusement centers will be centered around all things Netflix and will include a retail component, a restaurant called Netflix Bites and numerous "immersive story-driven experiences" based on the company's most successful properties. The Netflix House in Philadelphia will open November 12 at the King of Prussia Mall, and the Dallas location will open December 11 a

Topics: experiences immersive location netflix shows

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‘Foundation’ Star Brandon P. Bell on Sci-Fi Spycraft and the Power of Asimov

gizmodo.com Cheryl Eddy 2025-11-07 10:00:04

Foundation season three is closing in on its finale, but there’s still a trio of action-packed episodes to go. io9 got a chance to talk to Brandon P. Bell, who plays Captain Han Pritcher; he’s a new character this season but has a name Foundation book readers will immediately recognize. On the Apple TV+ show based on the Isaac Asimov stories, Pritcher is entwined in multiple storylines. He’s the Foundation’s top intelligence officer, at least until he has a major falling-out with his boss. But

Topics: foundation just pritcher season think

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Report: Don't Expect New AirPods Max 2 at Apple's iPhone 17 Event

cnet.com See Full Bio 2025-11-07 10:15:09

Some of us have been waiting for Apple to announce a new second-gen version of the AirPods Max, its high-end over-ear noise-canceling headphones that were released in December 2020. They were refreshed last year with USB-C connectivity, some new color options and USB-C audio in April of this year. But if a recent report by Bloomberg's Mark Gurman, who's usually a reliable Apple whisperer, proves accurate, we won't be seeing the AirPods Max 2 at Apple's iPhone 17 Event, which is likely to take pl

Topics: airpods apple audio max new

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Trump told a major offshore wind project to stop construction just before it reached the finish line

theverge.com Justine Calma 2025-11-07 10:45:45

is a senior science reporter covering energy and the environment with more than a decade of experience. She is also the host of Hell or High Water: When Disaster Hits Home , a podcast from Vox Media and Audible Originals. Posts from this author will be added to your daily email digest and your homepage feed. The Revolution Wind farm was already 80 percent complete before the US Bureau of Ocean Energy Management sent it a letter Friday to “halt all ongoing activities” to address purported natio

Topics: 80 added energy revolution wind

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Silicon Valley is pouring millions into pro-AI PACs to sway midterms

techcrunch.com Rebecca Bellan 2025-11-07 10:11:43

In Brief Andreessen Horowitz and OpenAI President Greg Brockman are among the Silicon Valley veterans putting more than $100 million into a network of political-action committees (PACs) that will advocate against strict AI regulations in next year’s midterm elections, reports The Wall Street Journal. The new pro-AI super-PAC network dubbed “Leading the Future” aims to use campaign donations and digital ads to advocate for favorable AI regulation and oppose candidates that the group thinks will

Topics: ai industry network regulations year

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This simple phone habit could be doing more harm than you realize (and the quick fix)

zdnet.com Chris Bayer 2025-11-07 15:21:00

Sabrina Ortiz/ZDNET Follow ZDNET: Add us as a preferred source on Google. A friend of mine recently told me, "I always keep my phone on silent mode… which doesn't matter because I compulsively look at it every three minutes anyway." He's not the only one. From becoming a text addict to having full-blown smartphone dependency, the urge to look at and interact with our "flat things" has been deeply ingrained into our collective behavior for some time now. Also: How I'm bringing back physical m

Topics: face notification phone screen vibration

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Prediction-Encoded Pixels image format

news.ycombinator.com Unknown 2025-11-07 11:05:38

Prediction-Encoded Pixels This format is specifically designed to be for low-color pixel art (<=16 colors works best, up to 256 colors is supported). It uses "Prediction by Partial Matching, Order-2" compression, which is able to compress packed-palette-indices smaller than GIF, PNG, and QOI, while sacrificing a bit of time. It's 2-10x slower than GIF/PNG/QOI (depending on the image), but often compresses the image 20-50% smaller than GIF/PNG (and multiple-times smaller than QOI). If you care

Topics: compression image in_pep pep struct

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Japan's Creepiest Station

news.ycombinator.com Ben Leighton 2025-11-07 14:44:58

However, if travelling northbound in the direction of Niigata, the station takes on a vastly different character. The northbound platform is a 15 minute walk away from the main station building. A majority of this walk consists of a 70m descent down almost 500 steps into the Shin-Shimizu tunnel. The descent is terrifying, with little vision of what awaits you at the end as you venture further and further into the depths. Water from the nearby rivers can also be heard trickling into the tunnel at

Topics: descent faster northbound station walk

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SpaceX’s latest Dragon mission will breathe more fire at the space station

arstechnica.com Unknown 2025-11-07 15:21:20

SpaceX completed its 33rd cargo delivery to the International Space Station early Monday, when a Dragon supply ship glided to an automated docking with more than 5,000 pounds of scientific experiments and provisions for the lab's seven-person crew. The resupply flight is part of the normal rotation of cargo and crew missions that keep the space station operating. The Dragon spacecraft's cargo haul comprised packages of fresh food, including some 1,500 tortillas, and equipment for numerous resea

Topics: altitude cargo dragon space station

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The MasterClass Labor Day sale discounts subscriptions by 50 percent

engadget.com Unknown 2025-11-07 20:46:25

MasterClass promises online learning with instructors who are the very best in their fields, and an annual subscription is currently 50 percent off across all tiers. Subscribers to MasterClass will have access to over 200 classes taught by iconic authors, chefs, athletes and leaders representing a diverse collection of skill sets and backgrounds. With a subscription, you could watch a class on writing taught by James Patterson, or learn cooking techniques from Thomas Keller. If you're trying to

Topics: 10 classes learn masterclass subscription

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FTC warns tech giants not to bow to foreign pressure on encryption

bleepingcomputer.com Unknown 2025-11-05 18:21:32

The Federal Trade Commission (FTC) is warning major U.S. tech companies against yielding to foreign government demands that weaken data security, compromise encryption, or impose censorship on their platforms. FTC Chairman Andrew N. Ferguson signed the letter sent to large American companies like Akamai, Alphabet (Google), Amazon, Apple, Cloudflare, Discord, GoDaddy, Meta, Microsoft, Signal, Snap, Slack, and X (Twitter). Ferguson stresses that weakening data security at the request of foreign

Topics: encryption end ferguson foreign security

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Google will soon make it easier to find out what’s wrong with your Pixel (APK teardown)

androidauthority.com Unknown 2025-11-08 09:07:26

Rita El Khoury / Android Authority TL;DR Google is testing new diagnostics options for Pixel devices. This new option combines discrete options into a single dashboard to test if there’s anything wrong with your phone. It also introduces a new AI-powered search option to inspect likely problems with your Pixel device. The on-device diagnostics options on Google’s Pixel phones are in for a significant overhaul. We have spotted Google testing a new menu option that combines various diagnostic

Topics: device diagnostics menu options pixel

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You can customize your NotebookLM Audio Overview outputs in-app now - here's how

zdnet.com Webb Wright 2025-11-08 10:43:44

peshkov/iStock/Getty Images Plus via Getty Images Follow ZDNET: Add us as a preferred source on Google. ZDNET's key takeaways: The NotebookLM app now offers new customization options. The platform is positioned as an AI-powered research assistant. More updates can be expected soon, according to the platform. The NotebookLM mobile app just got a little more customizable. You can now specify more elements within the Google-owned platform's Audio Overview tool, which debuted in September of

Topics: ai audio google notebooklm platform

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Agent-C: a 4KB AI agent

news.ycombinator.com Unknown 2025-11-08 10:43:50

To see all available qualifiers, see our documentation . Saved searches Use saved searches to filter your results more quickly We read every piece of feedback, and take your input very seriously. You signed in with another tab or window. Reload to refresh your session. You signed out in another tab or window. Reload to refresh your session. You switched accounts on another tab or window. Reload to refresh your session. Dismiss alert

Topics: refresh reload session tab window

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This Hidden iPhone Feature Could Improve Your Call Quality

cnet.com See Full Bio 2025-11-08 10:00:03

Apple released the fourh public beta of iOS 26 on Aug. 18, and it brought call screening and more to the iPhone's of developers and beta testers. But you don't need to be a developer or beta tester to use Voice Isolation, a hidden iPhone feature that can make your calls clearer for the person on the other end of your call. Apple introduced Voice Isolation in 2023 with iOS 16.4. The tech company added the feature, alongside Wide Spectrum, to FaceTime calls with iOS 15 in 2021, but only Voice Iso

Topics: calls ios isolation phone voice

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The Mysterious Shortwave Radio Station Stoking US-Russia Nuclear Fears

wired.com Justin Ling 2025-11-08 10:00:00

Shortly after US president Donald Trump hung up a call with Russia’s Vladimir Putin this spring, an obscure shortwave radio channel, broadcasting from a military base somewhere in Russia, sprang to life. Through a fog of static, at 4625 kHz on the shortwave dial, a man’s voice spoke in monotone: “Nikolai, Zhenya, Tatiana, Ivan.” He repeats the message—spelled out in the Russian phonetic alphabet—followed by a series of numbers and letters. The whole message reads: “NZhTI 01263 BOLTANKA 4430 952

Topics: 76 message radio shortwave station

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Mac mini vs Mac Studio: For under $900 right now, which one should you pick up?

9to5mac.com Michael Burkhardt 2025-11-08 05:46:22

Apple has three standalone Mac desktops – the Mac mini, Mac Studio, and Mac Pro. Mac Pro isn’t exactly worth talking about, so we’ll focus on the former two. While these computers are typically priced quite far apart ($599 vs $1999), the Mac Studio is a bit older – and Amazon has an incredible deal on the one generation old M2 Max model. We’ll be comparing the two, and showing you which computer is the best bang for your buck at this price point. Right now, Amazon has the M2 Max Mac Studio on

Topics: m4 mac max mini studio

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AirPods Max in 2025? Same drawbacks, now ready for pros, and one killer feature

zdnet.com Jason Hiner 2025-11-08 05:07:17

Jason Hiner/ZDNET Key takeaways The ability to switch quickly and seamlessly across an unlimited number of Apple devices is still the best feature of the AirPods Max. The low-latency upgrade in iOS 18.4 makes the AirPods Max a lot more viable for professional multimedia producers (and gamers) when using a wired connection. Comfort, battery life, and audio quality match high-end competitors from Sony, Bose, and others. Follow ZDNET: Add us as a preferred source on Google. Even with their im

Topics: airpods apple audio headphones max

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Ghrc.io appears to be malicious

news.ycombinator.com Brandon Mitchell 2025-11-08 03:27:52

A simple typo of ghcr.io to ghrc.io would normally be a small goof. You’d typically get a 404 or similar error, finally work out the issue, fix it, and move along. But in this case, that typo appears to be doing something very malicious, stealing GitHub credentials. First, a quick bit of background. ghcr.io is an OCI conformant registry for container images and OCI artifacts used by a lot of projects. It’s part of GitHub and is a very popular image and artifact repository used by open source pr

Topics: content ghrc https io nginx

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Today's NYT Connections: Sports Edition Hints and Answers for Aug. 25, #336

cnet.com See Full Bio 2025-11-08 09:50:22

Looking for the most recent regular Connections answers? Click here for today's Connections hints, as well as our daily answers and hints for The New York Times Mini Crossword, Wordle and Strands puzzles. Today's Connections: Sports Edition might be tough. How well do you know your Premier League teams? Read on for hints and the answers. Connections: Sports Edition is out of beta now, making its debut on Super Bowl Sunday, Feb. 9. That's a sign that the game has earned enough loyal players tha

Topics: answers connections group sports today

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We put a coding agent in a while loop

news.ycombinator.com Unknown 2025-11-08 00:18:53

To see all available qualifiers, see our documentation . Saved searches Use saved searches to filter your results more quickly We read every piece of feedback, and take your input very seriously. You signed in with another tab or window. Reload to refresh your session. You signed out in another tab or window. Reload to refresh your session. You switched accounts on another tab or window. Reload to refresh your session. Dismiss alert

Topics: refresh reload session tab window

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Show HN: Clearcam – Add AI object detection to your IP CCTV cameras

news.ycombinator.com Unknown 2025-11-07 18:34:15

clearcam Turn your RTSP enabled camera or old iPhone into a state of the art AI Security Camera Now on the Apple App Store https://apps.apple.com/app/clearcam/id6743237694 video demo: https://x.com/RoryClear/status/1959249250811785405 install and run NVR + inference with homebrew brew tap roryclear/tap brew install clearcam clearcam (optional) enter your Clearam premium userID (viewable in iOS app) to receive streams and notifications open localhost:8080 in your browser run NVR + inferen

Topics: app clearcam install ios sign

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Cloudflare incident on August 21, 2025

news.ycombinator.com Unknown 2025-11-05 00:14:10

6 min read On August 21, 2025, an influx of traffic directed toward clients hosted in the Amazon Web Services (AWS) us-east-1 facility caused severe congestion on links between Cloudflare and AWS us-east-1. This impacted many users who were connecting to or receiving connections from Cloudflare via servers in AWS us-east-1 in the form of high latency, packet loss, and failures to origins. Customers with origins in AWS us-east-1 began experiencing impact at 16:27 UTC. The impact was substantial

Topics: aws cloudflare congestion network traffic

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The two versions of Parquet

news.ycombinator.com Jerónimo López 2025-11-04 02:34:32

A few days ago, the creators of DuckDB wrote the article: Query Engines: Gatekeepers of the Parquet File Format, which explained how the engines that process Parquet files as SQL tables are blocking the evolution of the format. This is because those engines are not fully supporting the latest specification, and without this support, the rest of the ecosystem has no incentive to adopt it. In my experience, this issue is not limited to Query Engines but extends to the tools within the ecosystem.

Topics: format improvement mb parquet version

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Today's NYT Connections Hints, Answers and Help for Aug. 25, #806

cnet.com See Full Bio 2025-11-08 05:00:04

Looking for the most recent Connections answers? Click here for today's Connections hints, as well as our daily answers and hints for The New York Times Mini Crossword, Wordle, Connections: Sports Edition and Strands puzzles. Today's NYT Connections puzzle was all over the place for me. I solved the blue category right away, but did not even see the purple theme coming. Read on for clues and today's Connections answers. The Times now has a Connections Bot, like the one for Wordle. Go there aft

Topics: answers connections group today words

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Latest Tech News

A visual introduction to big O notation

Tech founder throws hat in California governor’s race

Two smart ring brands will no longer be available to US shoppers (Update: Statement)

Malicious Android apps with 19M installs removed from Google Play

Don't Expect New AirPods Max 2 at Apple's iPhone 17 Event, Report Says

Netflix sets opening dates for its destination entertainment hubs

‘Foundation’ Star Brandon P. Bell on Sci-Fi Spycraft and the Power of Asimov

Report: Don't Expect New AirPods Max 2 at Apple's iPhone 17 Event

Trump told a major offshore wind project to stop construction just before it reached the finish line

Silicon Valley is pouring millions into pro-AI PACs to sway midterms

This simple phone habit could be doing more harm than you realize (and the quick fix)

Prediction-Encoded Pixels image format

Japan's Creepiest Station

SpaceX’s latest Dragon mission will breathe more fire at the space station

The MasterClass Labor Day sale discounts subscriptions by 50 percent

FTC warns tech giants not to bow to foreign pressure on encryption

Google will soon make it easier to find out what’s wrong with your Pixel (APK teardown)

You can customize your NotebookLM Audio Overview outputs in-app now - here's how

Agent-C: a 4KB AI agent

This Hidden iPhone Feature Could Improve Your Call Quality

The Mysterious Shortwave Radio Station Stoking US-Russia Nuclear Fears

Mac mini vs Mac Studio: For under $900 right now, which one should you pick up?

AirPods Max in 2025? Same drawbacks, now ready for pros, and one killer feature

Ghrc.io appears to be malicious

Today's NYT Connections: Sports Edition Hints and Answers for Aug. 25, #336

We put a coding agent in a while loop

Show HN: Clearcam – Add AI object detection to your IP CCTV cameras

Cloudflare incident on August 21, 2025

The two versions of Parquet

Today's NYT Connections Hints, Answers and Help for Aug. 25, #806

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