| Problem Name | Online Judge | Year | Contest | Difficulty Level | |
|---|---|---|---|---|---|
| 1 | Minimum Cost | SPOJ | 1 | ||
| 2 | Edit distance | SPOJ | 1 | ||
| 3 | Edit Distance Again | SPOJ | 1 | ||
| 4 | String Computer | UVA | 2 | ||
| 5 | String Distance and Transform Process | UVA | 2 | ||
| 6 | AGTC | UVA | 3 | ||
| 7 | Edit Distance | Live Archive | 2010 | North America - North Central NA | 5 |
| 8 | Edit Distance | SPOJ | 5 | ||
| 9 | I Like Uppercase Palindrome | SPOJ | 8 |