| 题目编号 | 标题 | 来源/分类 | 解决 | 提交 | |
| A | Quicksum | Mid-Central USA 2006 | 2 | 3 | |
| B | Speed Limit | Mid-Central USA 2004 | 1 | 1 | |
| C | Magic Squares | Mid-Central European Regional Contest 1999, Practice | 1 | 1 | |
| D | Cup | Mid-Central European Regional Contest 1999, Practice | 0 | 0 | |
| E | Who is the CEO? | 浙江理工大学第三届ACM程序设计竞赛 | 0 | 0 | |
| F | Digital Roots | Greater New York 2000 zjo1115 | 0 | 2 | |
| G | 高级机密 | yhr | 0 | 0 | |
| H | 数字三角形 | yehr | 1 | 3 | |
| I | Self Numbers | Mid-Central USA 1998 | 0 | 0 | |
| J | 能被11整除吗？ | yhr | 2 | 4 | |
| K | Fibonacci Again | ZOJ Monthly, December 2003 | 1 | 4 | |
| L | Skew Binary | Mid-Central USA 1997 | 0 | 0 | |
| M | Prime Gap | Asia 2007, Japan | 0 | 0 | |
| N | Rotten Ropes | Tehran 2003 | 0 | 0 |