Project Euler

Martin · **Posted:** Sun May 21, 2006 9:18 pm

http://www.mathschallenge.net/index.php?section=project

Fun and pretty straightforward programming contest. Check it out.

Cervantes · **Posted:** Sun May 21, 2006 9:34 pm

With credit for the link going to bugzpodder, of course. Wink

Martin · **Posted:** Sun May 21, 2006 9:51 pm

I should start reading the contests forum I think Wink

I found it through some Ruby site while looking for stuff on Ruby coding style. Anyway, locked.

zylum · **Posted:** Wed May 24, 2006 7:27 pm

why did you lock it? the thread bugz posted the link in was about something else...

anyway, how many problems have you solved? lets discuss some of the problems here Wink

i have done problems 1-11,13,16 and 20..

Martin · **Posted:** Wed May 24, 2006 11:03 pm

Yeah, I locked it before I looked up bugz's post, then forgot about it :p

So far I've done

1-25, 28, 37, 40, 42, 48 and 79.

EDIT: Here's my profile.

zylum · **Posted:** Thu May 25, 2006 5:31 pm

now i did 1-25 (except 19) and 67... can someone just tell me the answer to 19? that question is annoying Confused

Martin · **Posted:** Thu May 25, 2006 6:23 pm

19 is really easy.

The Jan 1 1901 is a Monday. January has 31 days. What day of the week will it be 31 days after a Monday? nextday = (today + 31) mod 7.

After that, February has 28 days (because it's not a leap year). So nextday = (today + 28) mod 7.

And so on.

zylum · **Posted:** Thu May 25, 2006 11:29 pm

yeah, easy but tedious... my least favourite one thus far was the one where you had to count how many letters it would take to spell out all the numbers from one to one thousand Confused

easy but tedious..

btw, jan 1st, 1900 was no necessarily a monday, it says jan 1900.. unless you have found this out then... actually according to http://www.timeanddate.com/calendar/index.html?year=1901&country=1 jan 1, 1901 is a Tuesday Wink

[edit] yay i got it Cool

[/edit]

Bobrobyn · **Posted:** Fri May 26, 2006 7:32 am

zylum wrote:

yeah, easy but tedious... my least favourite one thus far was the one where you had to count how many letters it would take to spell out all the numbers from one to one thousand Confused

easy but tedious..

btw, jan 1st, 1900 was no necessarily a monday, it says jan 1900.. unless you have found this out then... actually according to http://www.timeanddate.com/calendar/index.html?year=1901&country=1 jan 1, 1901 is a Tuesday Wink

[edit] yay i got it Cool

[/edit]

If you enjoy solving the problems, it really isn't tedious.

Anyways, thanks for the link. I'll try it sometime -- probably after exams.

zylum · **Posted:** Fri May 26, 2006 12:56 pm

hmm.. i just realized something... in my program i didnt check for leap years and i still got the correct answer Laughing

zylum · **Posted:** Mon May 29, 2006 12:06 am

528 points, 44 problems solved Laughing

solved all problems of difficulty < 16 except for 45... cant seem to get that one to work.. any ideas?

Martin · **Posted:** Mon May 29, 2006 2:04 am

zylum wrote:

528 points, 44 problems solved Laughing

Oh it's on Zylum.

zylum · **Posted:** Mon May 29, 2006 7:10 pm

Martin wrote:

zylum wrote:

528 points, 44 problems solved Laughing

Oh it's on Zylum.

oh is it?

http://mathschallenge.net/index.php?section=project&ref=scores&profile=4547

bugzpodder · **Posted:** Fri Jun 09, 2006 8:49 am

wow u guys are fast. i probably dont even as many solved as martin does (about the same)

bugzpodder · **Posted:** Sat Jun 10, 2006 10:08 am

really do you guys do this 12 hours a day? now you guys are like 700 points, way ahead of me Smile

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