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Word numbers: Billion approaches (2008)

news.ycombinator.com Unknown 2025-09-25 09:16:03

Word numbers, Part 1: Billion approaches ITA Software recruits computer scientists using puzzles such as the following. If the integers from 1 to 999,999,999 are written as words, sorted alphabetically, and concatenated, what is the 51 billionth letter? In a series of posts, Dylan Thurston and I will solve this problem step by step, introducing concepts such as monoids and differentiation along the way. We will use the programming language Haskell: every post will be a literate program that y

Topics: list seminearring string strings wordnumbers1

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WordNumbers: Counting letters of number names, alphabetized and concatenated

news.ycombinator.com Unknown 2025-09-26 00:16:03

Word numbers, Part 1: Billion approaches ITA Software recruits computer scientists using puzzles such as the following. If the integers from 1 to 999,999,999 are written as words, sorted alphabetically, and concatenated, what is the 51 billionth letter? In a series of posts, Dylan Thurston and I will solve this problem step by step, introducing concepts such as monoids and differentiation along the way. We will use the programming language Haskell: every post will be a literate program that y

Topics: list seminearring string strings wordnumbers1

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Discovery of a new satellite or ring arc around Quaoar

news.ycombinator.com Paul Arnold 2025-09-30 15:17:54

This article has been reviewed according to Science X's editorial process and policies . Editors have highlighted the following attributes while ensuring the content's credibility: Artist's impression of the icy Kuiper belt object 2002 LM60, dubbed "Quaoar" by its discoverers. Credit: NASA and G. Bacon (STScI); Science Credit: NASA and M. Brown (Caltech) Astronomers have discovered what they think may be another moon orbiting a distant dwarf planet called Quaoar. This small, icy, egg-shaped pl

Topics: planet quaoar ring rings satellite

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We tested six smart rings, and there’s a clear winner

theverge.com Victoria Song 2025-10-07 09:23:33

is a senior reporter focusing on wearables, health tech, and more with 13 years of experience. Before coming to The Verge, she worked for Gizmodo and PC Magazine. Smart rings are having a moment. After years as a niche gadget, regular people are starting to see the appeal. They’re thinner, more accurate, and more wearable compared to a decade ago — and for some people, they’re a smarter choice than smartwatches. Related The best smart rings for tracking sleep and health Smartwatches may domin

Topics: best oura ring rings smart

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I've tried 3 different smart rings but I keep going back to Apple Watch - here's why

zdnet.com Jason Hiner 2025-10-23 13:45:00

Apple Watch Ultra and Oura Ring Jason Hiner/ZDNET Follow ZDNET: Add us as a preferred source on Google. I've been wearing an Apple Watch every day for the past decade and I've been using it to track my sleep every night since 2019. Over the past few years, I've known more and more friends, family, and colleagues opting for smart rings instead of smart watches to track their health. I've also personally tested the Oura Ring, the Samsung Galaxy Ring, and the Ultrahuman Ring Air. But eventually,

Topics: apple ring rings sleep watch

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Group Borrowing: Zero-cost memory safety with fewer restrictions

news.ycombinator.com Evan Ovadia 2025-10-27 17:29:15

Child groups That's a useful rule, and it can get us pretty far. But let's make it even more specific, so we can prove more programs memory-safe. For example, look at this snippet: rs ref hp_ref = d.hp # Ref to contents damage = a.calculate_damage(d) a_energy_cost = a.calculate_attack_cost(d) d_energy_cost = d.calculate_defend_cost(a) a.use_energy(a_energy_cost) d.use_energy(d_energy_cost) d.damage(damage) print(hp_ref) # Valid! The previous (invalid) program had a ring_ref referring to an ele

Topics: entity group object ref rings

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My Apple Watch still beats Oura Ring - except for one killer feature I wish Apple would steal

zdnet.com Jason Hiner 2025-10-28 05:52:00

Apple Watch Ultra and Oura Ring Jason Hiner/ZDNET Follow ZDNET: Add us as a preferred source on Google. I've been wearing an Apple Watch every day for the past decade and I've been using it to track my sleep every night since 2019. Over the past few years, I've known more and more friends, family, and colleagues opting for smart rings instead of smart watches to track their health. I've also personally tested the Oura Ring, the Samsung Galaxy Ring, and the Ultrahuman Ring Air. But eventually,

Topics: apple ring rings sleep watch

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Group Borrowing: Zero-Cost Memory Safety with Fewer Restrictions

news.ycombinator.com Evan Ovadia 2025-10-28 08:29:15

Child groups That's a useful rule, and it can get us pretty far. But let's make it even more specific, so we can prove more programs memory-safe. For example, look at this snippet: rs ref hp_ref = d.hp # Ref to contents damage = a.calculate_damage(d) a_energy_cost = a.calculate_attack_cost(d) d_energy_cost = d.calculate_defend_cost(a) a.use_energy(a_energy_cost) d.use_energy(d_energy_cost) d.damage(damage) print(hp_ref) # Valid! The previous (invalid) program had a ring_ref referring to an ele

Topics: entity group object ref rings

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Two subscription-free smart rings were just banned in the US - here's why

zdnet.com Nina Raemont 2025-10-28 22:00:21

Nina Raemont/ZDNET Follow ZDNET: Add us as a preferred source on Google. ZDNET's key takeaways Oura won a patent dispute with Ultrahuman and RingConn. The two competitors infringed on form factor patents, the ITC ruled on Aug. 21. Ultrahuman and RingConn smart rings can no longer be sold in the US. Oura secured a final legal victory in its patent dispute with Ultrahuman and RingConn last week. The US International Trade Commission's ruling asserts that the two competing smart ring brands i

Topics: oura ring rings smart ultrahuman

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I still prefer Apple Watch over Oura Ring for 3 key reasons - but there is one big drawback

zdnet.com Jason Hiner 2025-10-29 05:43:02

Apple Watch Ultra and Oura Ring Jason Hiner/ZDNET I've been wearing an Apple Watch every day for the past decade and I've been using it to track my sleep every night since 2019. Over the past few years, I've known more and more friends, family, and colleagues opting for smart rings instead of smart watches to track their health. I've also personally tested the Oura Ring, the Samsung Galaxy Ring, and the Ultrahuman Ring Air. But eventually, I keep taking off the rings and coming back to the App

Topics: apple ring rings sleep watch

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SDS: Simple Dynamic Strings library for C

news.ycombinator.com Unknown 2025-10-27 08:27:59

Simple Dynamic Strings Notes about version 2: this is an updated version of SDS in an attempt to finally unify Redis, Disque, Hiredis, and the stand alone SDS versions. This version is NOT binary compatible* with SDS verison 1, but the API is 99% compatible so switching to the new lib should be trivial. Note that this version of SDS may be a slower with certain workloads, but uses less memory compared to V1 since header size is dynamic and depends to the string to alloc. Moreover it includes

Topics: function printf sds string strings

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Antirez/sds: Simple Dynamic Strings library for C

news.ycombinator.com Unknown 2025-10-27 18:27:59

Simple Dynamic Strings Notes about version 2: this is an updated version of SDS in an attempt to finally unify Redis, Disque, Hiredis, and the stand alone SDS versions. This version is NOT binary compatible* with SDS verison 1, but the API is 99% compatible so switching to the new lib should be trivial. Note that this version of SDS may be a slower with certain workloads, but uses less memory compared to V1 since header size is dynamic and depends to the string to alloc. Moreover it includes

Topics: function printf sds string strings

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Das Problem mit German Strings

news.ycombinator.com Unknown 2025-10-31 01:59:35

German strings are everywhere I look. The impression I’ve gotten from working in the Rust Arrow/Datafusion ecosystem and related file formats for the last couple of months is that StringViews (the implementation of German strings in Arrow) are becoming, if they have not already, the canonical form of representing string columns at execution time. This is generally a good idea. German strings are a fantastic innovation rooted in simplicity that greatly improves most string processing use-cases i

Topics: buffer columns encoding string strings

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Want a subscription-free, Oura-like smart ring? You need act fast. Here's why

zdnet.com Nina Raemont 2025-11-03 04:36:00

Nina Raemont/ZDNET Follow ZDNET: Add us as a preferred source on Google. ZDNET's key takeaways Oura won a patent dispute with Ultrahuman and RingConn. The two competitors infringed on form factor patents, the ITC ruled on Aug. 21. Ultrahuman and RingConn smart rings can no longer be sold in the US. Oura secured a final legal victory in its patent dispute with Ultrahuman and RingConn last week. The US International Trade Commission's ruling asserts that the two competing smart ring brands i

Topics: oura ring rings smart ultrahuman

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Oura's biggest smart ring rivals were just banned in the US - but you can still buy them (for now)

zdnet.com Nina Raemont 2025-11-03 14:23:27

Nina Raemont/ZDNET Follow ZDNET: Add us as a preferred source on Google. ZDNET's key takeaways Oura won a patent dispute with Ultrahuman and RingConn. The two competitors infringed on form factor patents, the ITC ruled on Aug. 21. Ultrahuman and RingConn smart rings can no longer be sold in the US. Oura secured a final legal victory in its patent dispute with Ultrahuman and RingConn last week. The US International Trade Commission's ruling asserts that the two competing smart ring brands

Topics: oura ring rings smart ultrahuman

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The Best Smart Rings, Tested and Reviewed (2025)

wired.com Simon Hill 2025-12-28 17:30:00

Honorable Mentions We have tested several other entrants to this nascent category, some good, some bad, and some in between. Here is the lowdown on some of your smart ring alternatives. Photograph: Adrienne So; Getty Images Movano Evie Ring for $269: When it first came out, the Movano Evie Ring (4/10, WIRED Review) was touted as the world's first fitness tracker designed specifically for women. I was very excited! It was recently updated to integrate with Apple Health (in the iOS version of t

Topics: finger ring rings smart tracking

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Onstage at TechCrunch Disrupt 2025: How AI is forcing late-stage startups to rewire GTM — or be left behind

techcrunch.com Techcrunch Events 2026-01-07 20:30:00

AI isn’t just disrupting products — it’s upending how companies sell, scale, and succeed. At TechCrunch Disrupt 2025, happening October 27-29 in San Francisco, we’re diving deep into how late-stage startups are navigating this shift. Catch this dynamic panel on the Going Public Stage, where three seasoned leaders will explore how AI is transforming go-to-market (GTM) strategies from the inside out. Why attend this session? If you’re scaling a startup and wondering how AI fits into your next ph

Topics: 2025 ai brings com gtm

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On stage at TechCrunch Disrupt 2025: How AI is forcing late-stage startups to rewire GTM — or be left behind

techcrunch.com Techcrunch Events 2026-01-08 08:30:00

AI isn’t just disrupting products — it’s upending how companies sell, scale, and succeed. At TechCrunch Disrupt 2025, happening October 27–29 in San Francisco, we’re diving deep into how late-stage startups are navigating this shift. Catch this dynamic panel on the Going Public Stage, where three seasoned leaders will explore how AI is transforming go-to-market (GTM) strategies from the inside out. Why attend this session? If you’re scaling a startup and wondering how AI fits into your next ph

Topics: 2025 ai brings com gtm

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The best smart rings for tracking sleep and health

theverge.com Victoria Song 2026-01-09 03:19:13

is a senior reporter focusing on wearables, health tech, and more with 13 years of experience. Before coming to The Verge, she worked for Gizmodo and PC Magazine. So, you’re thinking of buying a smart ring. Well, some good news. Picking the best of the lot is incredibly easy right now. The “bad” news is that, as far as trustworthiness and reliability, your choices are somewhat limited, as this is still a niche and emerging gadget category. Smart rings are in the middle of a resurgence. That me

Topics: oura ring rings smart ve

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Fstrings.wtf

news.ycombinator.com Unknown 2026-01-11 06:52:35

fstrings.wtf How good is your knowledge of Python f-strings? (Questions reflect behavior as of Python 3.13) Start Quiz

Topics: 13 behavior fstrings good python

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Tighten up your cap table with Fidelity, Cimulate, and DepositLink at TechCrunch All Stage 2025

techcrunch.com Techcrunch Events 2026-02-12 12:30:00

Fundraising is already hard — don’t let a messy cap table make it harder. At TechCrunch All Stage on July 15, founders will get a behind-the-scenes look at what it really takes to keep a raise on track during the roundtable session “Preparing to Raise: Cap Table Best Practices to Help You Close Fast.” Hosted on the Foundation Stage, this conversation brings together seasoned legal, financial, and founder voices to share what works, what slows things down, and what it actually takes to close qui

Topics: brings founders stage startup techcrunch

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Three powerhouses cover how to prepare now for your later-stage raise at TechCrunch Disrupt 2025

techcrunch.com Techcrunch Events 2026-02-20 17:30:00

TechCrunch Disrupt 2025 hits Moscone West in San Francisco this October 27–29, and if you’re building with big funding goals in mind, the session on preparing for your later-stage raise needs to be on your radar. Join three powerhouse voices in venture and AI-driven innovation as they share what it really takes to close major rounds — long before you’re in the room with investors. This panel, taking place October 29 on the Builders Stage, is a roadmap for any founder who knows that Series C doe

Topics: ai big brings founder growth

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Best Internet Providers in Colorado Springs, Colorado

cnet.com See Full Bio 2026-03-09 11:32:00

What is the best internet provider in Colorado Springs? Xfinity is the best internet service provider in Colorado Springs, thanks to its broad coverage throughout the area, high download speeds and low prices. If Xfinity isn't available at your address, Quantum Fiber, T-Mobile and Rise Broadband are all worth considering. Plus, Xfinity offers a decent variety of plans that range from $55 to $85 a month. If you're after speed, Xfinity's Gigabit Extra plan is one of the fastest -- and widely ava

Topics: colorado fiber internet speeds springs

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Nothing says an Essential Space premium tier could be in the cards in the future

androidauthority.com Unknown 2026-03-12 14:17:02

In the interview, Pei describes the code we found as “zombie strings” that were left there during development. He adds that in its current form, Essential Space will remain free. However, he doesn’t rule out the possibility of a premium tier being added in the future: So I think that’s what happened, somebody got their hands on an older version of the APK and they decompiled it and saw that there [were] some strings related to charging for Essential Space. That was never in the production softw

Topics: current essential premium strings think

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A different take on S-expressions

news.ycombinator.com Unknown 2026-03-09 22:25:57

[about document] Peculiar kind of S-expressions specification document [intended audience] beginners in programming table of contents 1. introduction S-expressions (Symbolic Expressions) are a fundamental concept in computer science and programming language theory. S-expressions are a simple, yet powerful notation for representing nested list data structures and code in a parenthesized form. They are commonly associated with the Lisp family of programming languages, where they serve both as

Topics: blocks expression line strings transposed

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Best Buy Has HP’s 14″ 2-in-1 Laptop for Almost 50% Off to Compete With Amazon’s Early Prime Day Deal

gizmodo.com Joe Tilleli 2026-03-13 08:40:00

Why choose between a laptop or a tablet when you can get one device that can be both? Best Buy has the Lenovo Envy 2-in-1 touchscreen laptop at a pretty sizable discount. Normally priced at $800, but for a limited time you can get it for $380 off. That brings it down to just $420—a discount of about 48%. The HP Envy laptop supports Full HD 1920 x 1080 resolution in it’s 14-inch touchscreen. The bezel is super thin allowing the active area of the laptop to reach the very edge. It’s running on an

Topics: brings just laptop search windows

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Updates From ‘The Rings of Power’, and More

gizmodo.com James Whitbrook 2026-03-22 15:00:22

A24’s Backrooms movie has found its stars. The Stranger Things animated series will introduce a new character into the Hawkins crew. Plus, Wednesday drops off a boatload of new character posters ahead of its return. Spoilers, assemble! The Backrooms According to Fangoria, the film adaptation of The Backrooms is set to officially enter production this summer with Chiwetel Ejiofor and Renate Reinsve set to star (as opposed to Christin Milotti, as previously rumored). Superman Speaking with Fan

Topics: character new rings series wednesday

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Latest Tech News

Word numbers: Billion approaches (2008)

WordNumbers: Counting letters of number names, alphabetized and concatenated

Discovery of a new satellite or ring arc around Quaoar

We tested six smart rings, and there’s a clear winner

I've tried 3 different smart rings but I keep going back to Apple Watch - here's why

Group Borrowing: Zero-cost memory safety with fewer restrictions

My Apple Watch still beats Oura Ring - except for one killer feature I wish Apple would steal

Group Borrowing: Zero-Cost Memory Safety with Fewer Restrictions

Two subscription-free smart rings were just banned in the US - here's why

I still prefer Apple Watch over Oura Ring for 3 key reasons - but there is one big drawback

SDS: Simple Dynamic Strings library for C

Antirez/sds: Simple Dynamic Strings library for C

Das Problem mit German Strings

Want a subscription-free, Oura-like smart ring? You need act fast. Here's why

Oura's biggest smart ring rivals were just banned in the US - but you can still buy them (for now)

The Best Smart Rings, Tested and Reviewed (2025)

Onstage at TechCrunch Disrupt 2025: How AI is forcing late-stage startups to rewire GTM — or be left behind

On stage at TechCrunch Disrupt 2025: How AI is forcing late-stage startups to rewire GTM — or be left behind

The best smart rings for tracking sleep and health

Fstrings.wtf

Tighten up your cap table with Fidelity, Cimulate, and DepositLink at TechCrunch All Stage 2025

Three powerhouses cover how to prepare now for your later-stage raise at TechCrunch Disrupt 2025

Best Internet Providers in Colorado Springs, Colorado

Nothing says an Essential Space premium tier could be in the cards in the future

A different take on S-expressions

Best Buy Has HP’s 14″ 2-in-1 Laptop for Almost 50% Off to Compete With Amazon’s Early Prime Day Deal

Updates From ‘The Rings of Power’, and More

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