this is a collection of Euler solutions. The last project (Nth) is probably not completed or not fully working. 

use at your own risk, I copyright it with the Create commons attribution-shareAlike http://creativecommons.org/licenses/by-sa/2.5/

Oh, and try not to judge too harshly, I use the Euler problems to learn new langauges like Haskell/C#,etc. 
Although I have used more familar languages to solve some of the more challenging.