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A Loyalty Card & Ticket Manager for Android

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Project Euler is a series of challenging mathematical/computer programming problems that will...

Which is more popular?
Based on our record, Project Euler seems to be a lot more popular than Catima. While we know about 415 links to Project Euler, we've tracked only 9 mentions of Catima.
Website, pricing, platforms and company facts side by side.
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Project Euler Challenges 1–4 - Coding Challenges with Florin
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Project Euler provides a large collection of challenges in the domain of computer science and mathematics. The challenges typically involve writing a small program to figure out the solution to a clever mathematical...
If you are studying algorithms and computer programming, chances are you’ve heard of Project Euler. A collection of mathematical problems made for problem solvers who are interested to combine mathematics and...
Recommendations tracked on public social media and blogs since March 2021.


For anyone wanting to do something like this on an Android phone, there is Catima (on Google Play and FDroid), which supports many types of barcodes. https://catima.app/. - Source: Hacker News / almost 3 years ago
Catima — Loyalty Card Wallet (version 2.23.3): For your barcodes, memberships, loyalty programs, coupons and tickets. Source: over 3 years ago
There's an app that does this - catima. Its open source too. I added all my loyalty cards as well as my (local) healthcare card. Source: over 3 years ago
Let's hope this is going to help me solve some more Project Euler [1] problems! [1] https://projecteuler.net/. - Source: Hacker News / 4 months ago
Https://projecteuler.net/ for "Thinker" brain food. (it still has the issue of not being a pragmatic use of time, but there are plenty interesting enough questions which it at least helps). - Source: Hacker News / 7 months ago
I have a Project Euler (https://projecteuler.net/) account. Though I do not register at all on the leader board I will sometimes work obsessively on a problem just to make one of the level icons light up for me. There is not really... - Source: Hacker News / 9 months ago
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