| | A | Rhombs | Shanghai Jiaotong University Programming Contest 2004 | 0 | 0 |
| | B | Fibonacci Number | Shanghai Jiaotong University Programming Contest 2004 | 4 | 4 |
| | C | Word Reversal | Shanghai Jiaotong University Programming Contest 2004 | 4 | 6 |
| | D | Adding 1s, 2s, and 3s | Shanghai Jiaotong University Programming Contest 2004 | 5 | 6 |
| | E | Triangle Centers | Shanghai Jiaotong University Programming Contest 2004 | 1 | 3 |
| | F | Jimmy's Riddles | Shanghai Jiaotong University Programming Contest 2004 | 1 | 1 |
| | G | Arctic Network | Waterloo local 2002.09.28 | 1 | 1 |
| | H | Mondriaan's Dream | University of Ulm Local Contest 2000 zoj1100 | 2 | 2 |