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Project Euler

projecteuler.net

131–140 of 142 posts

Re: Project Euler

#131
post #75

Earlier quoted context omitted.

This is one of my favourite problems, I still remember that it has a very real edge case even though I solved it more than 10 years ago. Thank you for the problem!

Sounds like the birthday paradox problem. Is it?

Nearly, but not 8 digits of precision worth.

Re: Project Euler

#132
post #85

I solved a few using AWK, fun: https://github.com/ketancmaheshwari/projecteuler

Did you use the regular version or the one with multiple-precision values?

I used the regular version. Actually, I don't even know what is multiple-precision values -- will look it up.

Re: Project Euler

#133
post #80
post #75

Earlier quoted context omitted.

This is one of my favourite problems, I still remember that it has a very real edge case even though I solved it more than 10 years ago. Thank you for the problem!

I'm glad you enjoyed! It was a real game I played when driving around.

Is your real name also Seth? This is wholesome and hilarious

Re: Project Euler

#134

12 years ago I was a failed computer science student, wasting my time on drugs. Having failed so many classes I did not see any future at all, and I was considering killing myself to get out of the anxiety and stress. My confidence regarding programming etc was 0. I decided to apply for a junior developer job. I got an interview and to prepare for an interview I found this site, Project Euler. I did ten or so tasks.…

Ha! For years I put Projet Euler on my resume.

Not one interviewer had heard of it.

Glad it worked out for you!

Re: Project Euler

#136
post #47

No one tells you that they delete inactive accounts. I used to have over 300 solved problems htere. Now it is all gone, all the effort, but the skill remained of course.

YMMV - I just tried to log in and after a few failed password attempts was able to use my account recovery code from 2014 and get in.

Re: Project Euler

#137
post #9

Earlier quoted context omitted.

I disagree. Often the techniques that you need for a harder problem, are discussed in a forum for an easier problem. Even more often the techniques that you need for a given problem are possible to work out from scratch. And the more you work out, the easier they get. This can be very frustrating for people who are used to being spoon fed techniques, then given problems which use what they have just been taught. But…

Wait, the math is discussed only in the forums? I thought one is supposed to gain mathematical insight from solving alone. As far as I have read here, forums are only accessible when having an account, which I don't. That would mean to solve later puzzles, I would need an account most likely.

The math is not only discussed in the forums. But yes, access to the forums is useful. You get to see not just how you solved the problem, but how others saw and tackled it. And often you'll learn something.

That free account really is valuable!

Re: Project Euler

#138
post #54

Are there other similar sites? I remember this one, for bioinformatics https://rosalind.info/problems/list-view/

I like Advent of Code. Pretty popular, and more general purpose programming puzzles rather than euler, which tends to be pure math focused.

https://adventofcode.com/

Re: Project Euler

#139
post #91

I wrote Problem 619 ( https://projecteuler.net/problem=619 ) which was published on 2018-01-27 and solved by 474. The problem was based on 2013 Putnam Exam problem A2 ( https://kskedlaya.org/putnam-archive/2013.pdf ) which I took at the end of undergrad. I got an email six years later (in November 2024) telling me they accepted the problem: Greetings! Please excuse the email. It's quite possible that you are no longe…

Were you also one of Dr. Kedlaya’s students? Or just used that link? I was in an undergrad course of his and really enjoyed it. Such a smart guy.

I think they're just using the link. When I went to uni we used that website for our Putnam elective.
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