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Replication of Quantum Factorisation Records with a VIC-20, an Abacus, and a Dog

news.ycombinator.com Peter Gutmann 2025-07-19 20:09:07

Paper 2025/1237 Replication of Quantum Factorisation Records with an 8-bit Home Computer, an Abacus, and a Dog Peter Gutmann , University of Auckland Stephan Neuhaus , Zurich University of Applied Sciences Abstract This paper presents implementations that match and, where possible, exceed current quantum factorisation records using a VIC-20 8-bit home computer from 1981, an abacus, and a dog. We hope that this work will inspire future efforts to match any further quantum factorisation recor

Topics: abacus factorisation match quantum records

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Adding lookbehinds to rust-lang/regex

news.ycombinator.com Robin Hänni 2025-07-28 13:37:15

In a previous blogpost, Erik wrote about how he implemented the linear time matching algorithm from [RegElk+PLDI24] in the popular regex engine RE2. In this one, we're looking at how to do the same thing for the official regex engine from the Rust language. Namely, we add support for unbounded captureless lookbehinds. First, let's discover the newly supported feature and its limitations. Lookbehinds allow regexes to make assertions about things preceding some part of the regex pattern without c

Topics: engine lookbehind lookbehinds match regex

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Move Over Messi: China’s New Robot Soccer League Is Wild!

gizmodo.com Luc Olinga 2025-08-11 23:33:56

China has officially launched its first humanoid robot football league. And while the players may not breathe, they’re already learning to dribble, shoot, fall, and get back up. The RoBoLeague, which began on June 28, 2025 in Beijing, pits AI-controlled humanoid robots against each other in fully autonomous 3-on-3 soccer matches. The first match featured robot teams developed by Tsinghua University and China Agricultural University. Tsinghua’s squad won the game with a final score of 5-3. The

Topics: china humanoid match robot robots

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N-Back – A Minimal, Adaptive Dual N-Back Game for Brain Training

news.ycombinator.com Unknown 2025-08-09 18:07:34

Playing the N-Back test is straightforward but requires focused attention. Watch the 3x3 grid as blue squares appear in different positions. Your task is to remember the sequence and identify when the current position matches the one from N steps ago. For a 2-Back test (the standard version), you need to determine if the current square's position matches the position from 2 steps earlier. Click 'Match' or press the spacebar when you detect a match, or click 'No Match' or press 'N' when there's

Topics: click current match matches position

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Apple TV's MLS Season Pass is half off for the rest of the season.

engadget.com Unknown 2025-08-20 14:43:05

Engadget has been testing and reviewing consumer tech since 2004. Our stories may include affiliate links; if you buy something through a link, we may earn a commission. Read more about how we evaluate products . If you've put off buying an MLS Season Pass this year then you're in luck. Today, Apple TV is cutting the price in half, dropping to $49 from $99, for the rest of the 2025 season. If you have an Apple TV+ subscription then you can get a seasonal subscription to the pass for just $39.

Topics: apple matches mls season year

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Infrastructure at Roblox

news.ycombinator.com Unknown 2025-08-20 03:58:20

Throttling is a very accepted concept in computer science. But this is the most misused and misunderstood lever of computer science. When new engineers join Roblox, their first solutions often include, “If we could just tell our creators to tweak this config or slow down their events…”. Veteran Roblox engineers then gently explain our value of respecting the community and that we don’t tell our creators what to do. For example, most gaming systems have a simple solution for matchmaking when mil

Topics: cloud matchmaking peak players roblox

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Weird Expressions in Rust

news.ycombinator.com Unknown 2025-08-24 18:08:26

Rust has a very powerful type system, but as a result it has some quirks, some would say cursed expressions. There’s a test file, weird-expr.rs , in the rust repository that tests for some of these and makes sure there consistent between updates. So I wanted to go over each of these and explain how it’s valid rust. Note that these are not bugs, but rather extreme cases of rust features like loops, expressions, coercion and so on. Strange fn strange () -> bool { let _x : bool = return true ;}

Topics: fn let match return u8

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Hinge is planning its own mobile payment system to avoid App Store fees

theverge.com Jay Peters 2025-09-03 06:00:00

is a news editor covering technology, gaming, and more. He joined The Verge in 2019 after nearly two years at Techmeme. As part of his appearance on the Decoder podcast, Hinge co-founder and CEO Justin McLeod says that the company would like to introduce an alternative payment service by the end of this year. With a Hinge-run alternative payment service, Apple won’t be able to take a cut of any purchases, and that “changes the equation” for Hinge on “many fronts,” according to McLeod. Not only

Topics: apple hinge match payment service

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Here are the price-matching policies for Best Buy, GameStop, and others

theverge.com Sheena Vasani 2025-09-07 18:30:00

Nothing is more frustrating than buying a new pair of headphones, an OLED TV, or a laptop just to find out that you could have gotten it for a lot cheaper somewhere else. That’s why, in order to keep customers happy and prevent them from going elsewhere, many retailers offer price-matching policies in which they promise to match a lower price found elsewhere. That kind of information comes in handy no matter the time of year, but it’s especially helpful during shopping events like Amazon Prime D

Topics: amazon doesn match price product

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June’s Game Pass additions include Remedy co-op shooter FBC: Firebreak

engadget.com Unknown 2025-09-11 22:31:31

Microsoft’s Game Pass is having a very impressive 2025 where the quality and cadence of releases is concerned, and things are showing no signs of slowing down as we settle into the summer months. Highlights of the June lineup include co-op FPS FBC: Firebreak, which joins the service today, Sloclap’s highly-anticipated soccer game, Rematch, and a trio of Warcraft remasters. Let’s start with probably the most significant addition. Back in May, Engadget’s Jessica Conditt got to play Remedy’s FBC:

Topics: firebreak game june pass rematch

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Latest Tech News

Replication of Quantum Factorisation Records with a VIC-20, an Abacus, and a Dog

Adding lookbehinds to rust-lang/regex

Move Over Messi: China’s New Robot Soccer League Is Wild!

N-Back – A Minimal, Adaptive Dual N-Back Game for Brain Training

Apple TV's MLS Season Pass is half off for the rest of the season.

Infrastructure at Roblox

Weird Expressions in Rust

Hinge is planning its own mobile payment system to avoid App Store fees

Here are the price-matching policies for Best Buy, GameStop, and others

June’s Game Pass additions include Remedy co-op shooter FBC: Firebreak

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