## Search found 36 matches

- Tue Aug 27, 2019 9:57 am
- Forum: News, Suggestions, and FAQ
- Topic: About Statistics-->Countries
- Replies:
**6** - Views:
**748**

### Re: About Statistics-->Countries

Aha, I'd been wondering about this since a browser tab I had open on the old https://projecteuler.net/country=Scotland page broke and I found it again at https://projecteuler.net/location=Scotland . This thread solves the mystery... I'd suspected it was probably something related to territorial clai...

- Wed Nov 28, 2018 11:15 pm
- Forum: Recreational
- Topic: Project Euler - Learning to code efficiently
- Replies:
**2** - Views:
**6200**

### Re: Project Euler - Learning to code efficiently

I would not say that Project Euler (PE) will teach you to code efficiently; more that you will need to learn to code efficiently to solve Project Euler problems. PE itself doesn't actually give you much to show you what efficient coding looks like (apart from some hints about prime sieving in PDFs a...

- Sat Apr 11, 2015 5:01 pm
- Forum: Recreational
- Topic: I just started project euler like 2 days ago.
- Replies:
**9** - Views:
**3142**

### Re: I just started project euler like 2 days ago.

Nice. Bit loud for me; does make me wonder about other PE logo-ed things though: a PE lapel pin maybe? Or a PE mug (with an Euler picture or some other suitably Euler-ish decor on the other side)? OEIS (if you haven't come across it yet in your Project Euler journey... you will!) were having a bit o...

- Sun Mar 29, 2015 1:06 pm
- Forum: Recreational
- Topic: Favorite Problem?
- Replies:
**5** - Views:
**6255**

### Re: Favorite Problem?

Thanks for explaining your philosophy MuthuVeerappanR. Elsewhere (maybe a thread on this board) I've commented that (IMHO) Project Euler has similarities with sports like rock climbing or mountaineering where most of the competition is "with yourself" and you define your own criteria for a success; ...

- Sun Mar 29, 2015 12:33 am
- Forum: Recreational
- Topic: Favorite Problem?
- Replies:
**5** - Views:
**6255**

### Re: Favorite Problem?

Hmmm...MuthuVeerappanR you claim to have solved problems using 12 hours and 2.5 days of computing time? Might I suggest that you might be missing the point of Project Euler? Personally I'd be unhappy submitting a solution to the site unless I had computed it in the requisite minute (those who can, s...

- Sun Nov 17, 2013 5:29 pm
- Forum: Recreational
- Topic: Jobs
- Replies:
**2** - Views:
**3745**

### Re: Jobs

I haven't seen enough job related traffic on this forum to make me think there's a need for a separate board on the topic. domdomdom's original post just makes me think "you need a more challenging job". Go and read some of Csikszentmihalyi's stuff on the state of mind called "flow" ( http://en.wiki...

- Mon Apr 15, 2013 2:28 pm
- Forum: Recreational
- Topic: Happy Birthday Leonhard Euler!!
- Replies:
**1** - Views:
**2024**

### Re: Happy Birthday Leonhard Euler!!

My wife just noticed today's Google Doodle marking Leonhard Euler's birthday:

"Look, it's Leonhard Euler! ... He's your nemesis! ... I mean hero!"

(Actually, I think nemesis was probably about right...)

"Look, it's Leonhard Euler! ... He's your nemesis! ... I mean hero!"

(Actually, I think nemesis was probably about right...)

- Wed Apr 03, 2013 9:19 pm
- Forum: Recreational
- Topic: Solution threads at the forum. Are they important for you ?
- Replies:
**4** - Views:
**5077**

### Re: Solution threads at the forum. Are they important for yo

What makes me really happy is seeing a bunch of other folks posting things like "hardest one yet" when I finally crack a really head-bangingly tough one. Good! Not just me then! The other more pragmatic thing is picking up other mathematical techniques/tricks useful for solving (later) problems whic...

- Wed Apr 03, 2013 9:04 pm
- Forum: Recreational
- Topic: Physics site like Project Euler?
- Replies:
**5** - Views:
**5511**

### Re: Physics site like Project Euler?

That would be pretty cool. I do find I have more affinity for the PE problems which are a bit more on the applied side (geometrical or probability ones mainly). Recently I needed to revise my knowledge of FFTs and my first instinct was to look for a PE problem involving them... but apparently there ...

- Mon Feb 25, 2013 7:30 pm
- Forum: Programming languages
- Topic: Interesting Observation
- Replies:
**3** - Views:
**3208**

### Re: Interesting Observation

notfruit wrote: > Some people prefer to stick with a language (like c++) even though they don't need all the bulk of the language I suspect there could be a substantial number of people using PE as a platform to explore/learn new languages as there are people using their "day job" language. I was aw...

- Fri Oct 05, 2012 11:25 pm
- Forum: Programming languages
- Topic: Scratch?
- Replies:
**3** - Views:
**3840**

### Re: Scratch?

Nice one; wondered when we'd see some Scratch-ing on PE. Can see the difficulty in posting solutions in the forum though! Having watched some friend's bright kid get into programming through Scratch, I think it's an absolutely fantastic tool for learning; the snap-together blocks sidestep many of th...

- Thu Oct 04, 2012 6:00 pm
- Forum: Recreational
- Topic: Graph of the Statistics
- Replies:
**15** - Views:
**7504**

### Re: Graph of the Statistics

Semi-related to this, some stuff I did a while ago from stats on participants by country at http://www.bottlenose.demon.co.uk/article/euler/index.htm#participants (bear in mind this was back in the day of the old 50-problem "levels"), and also at http://www.bottlenose.demon.co.uk/article/euler/index...

- Mon Sep 03, 2012 10:27 pm
- Forum: Recreational
- Topic: 1 minute contest variant
- Replies:
**3** - Views:
**2691**

### Re: 1 minute contest variant

Indeed. With AWS EC2 spot instances available for under 1c per hour, it's presumably entirely possible for anyone with the solution code available to script the marshalling of enough instances to have claimed to solve the entire lot in however much time their longest solution takes for just a few do...

- Sat Apr 14, 2012 12:54 pm
- Forum: Applied Mathematics
- Topic: Any PE problems requiring Fourier Transform/FFT to solve ?
- Replies:
**1** - Views:
**6463**

### Any PE problems requiring Fourier Transform/FFT to solve ?

I'm curious whether there are any Project Euler problems which require a Fourier Transform to solve, either because the solution implementation actually includes FFT code, or because some analytic treatment involving FT reveals something needed for a solution. No need to give a problem number if it ...

- Fri Apr 13, 2012 12:38 pm
- Forum: Recreational
- Topic: Alcohol and problem solving
- Replies:
**4** - Views:
**3065**

### Alcohol and problem solving

This recently published research cannot go unremarked: Drinking Alcohol May Significantly Enhance Problem Solving Skills Does this square with anyone's experience ? While I'm partial to "a wee dram" on the side during a late evening problem solving session, I can't say I'd claim it was particularly ...

- Fri Apr 06, 2012 10:57 pm
- Forum: Recreational
- Topic: Visual artefacts of Project Euler coding
- Replies:
**8** - Views:
**5545**

### Re: Visual artefacts of Project Euler coding

The poster was made with LaTex and the "beamerposter" package. I use LaTeX from the texlive distribution included in Debian (install texlive-full to pull in everything ). More about beamerposter (and some other examples): http://www-i6.informatik.rwth-aachen.de/~dreuw/latexbeamerposter.php ; I actua...

- Wed Apr 04, 2012 12:00 pm
- Forum: Recreational
- Topic: Visual artefacts of Project Euler coding
- Replies:
**8** - Views:
**5545**

### Re: Visual artefacts of Project Euler coding

Hmmm thanks that's very interesting information. I do probably tend to overruse BigInt; if there is any doubt about whether a problem will fit into 64bit "Long" range, I'll generally start off using a BigInt through until it becomes clear that I need some more performance to get a sub-minute solutio...

- Mon Apr 02, 2012 11:00 pm
- Forum: Recreational
- Topic: Visual artefacts of Project Euler coding
- Replies:
**8** - Views:
**5545**

### Re: Visual artefacts of Project Euler coding

My employer held a poster session for people to show off their "side projects" and CPD activities. Mine was based on my experiences solving Project Euler with Scala.

- Sun Mar 11, 2012 5:52 pm
- Forum: Recreational
- Topic: Which PE problems were the most satisfying for you to solve?
- Replies:
**13** - Views:
**8272**

### Re: Which PE problems were the most satisfying for you to so

For me, amount of satisfaction seems to be highly correlated with the amount of time I was seriously stuck on the problem. Getting the green tick is then like finally escaping some horrible ordeal. Top 3 are probably 152 ("Writing 1/2 as a sum of inverse squares"), 160 ("Factorial trailing digits") ...

- Thu Mar 01, 2012 10:40 pm
- Forum: Recreational
- Topic: Understanding the Universe
- Replies:
**14** - Views:
**6796**

### Re: Understanding the Universe

A "something" which "exists outside time" eh ? What if that something is simply "mathematics" ? Max Tegmark has written a fair bit on this theme (a synopsis would be: "The only postulate in this theory is that all structures that exist mathematically exist also physically" in other words mathematica...