Project Euler

Project Euler is a series of challenging mathematical/computer programming problems that will require more than just mathematical insights to solve. Although mathematics will help you arrive at elegant and efficient methods, the use of a computer and programming skills will be required to solve most problems.

 

This is an unofficial android app that contains all the 391 problems available on the Project Euler website. It does almost everything that the original site does, including displaying the images for the problems wherever necessary. It also has in-built answer checking for almost all problems.