Online-judge is a project mainly written in C++ and C, it's free.
My submissions for UVa Online Judge
Problems
| No. | Title | Status | |-----+--------------------------+--------------| | 100 | The 3n + 1 problem | Accepted | | 101 | The Blocks Problem | Accepted | | 102 | Ecological Bin Packing | Accepted | | 103 | Stacking Boxes | Accepted | | 113 | Power of Cryptography | Accepted | | 131 | The Psychic Poker Player | Wrong answer | | 144 | Student Grants | Accepted |