Was anyone else really into project euler? I was thinking about it today and I'm surprised to find that my old login still works! I used it to learn C++ back in the day. Wow, I was so into this site. I remember sitting in the sun on a quiet bench behind a Goog office in Mountain View solving just... one... more... before going back to project work. Good times.

I started December 2011 and apparently the last one I solved was #133 on August 23 2013.

@whereistanya I remember doing a bunch of them in a hackathon, but after that I forgot about the whole site.

I want to revisit the challenges some day, but real life challenges always comes first.

@oskaremil Real life really does just keep coming, doesn't it?
@whereistanya i think I started in 2009 sometime.. the site can't quite remember the dates for most of my solutions... Remember loving it though.. last one apparently in 2014. Got 114 solved... not sure I could pick it up again :)
@whereistanya I loved doing these and learned (and probably subsequently forgot) a lot of nifty math tricks. The going got very hard for me past about ~100 IIRC

@whereistanya Oh yes! At the time I think it was almost possible to keep up with the questions being generated, and now I'm 680 behind!

The computer science/algorithms bit was... ok, but learning funky number theory (Pell's Equation?) was really neat!

@sgf So many times I got to the end of working something out with hundreds of lines and some kind of series of steps I'd worked out and then the forum would be all "oh, of course I just used the Yogurt-Chipmunk conjecture, here it is in one line of MATLAB"
@whereistanya I used it as an arbitrary set of problems to try different languages on solving, with particular interest in how hardware design languages might solve the problem differently than software languages