| Problem Name | Online Judge | Contest | Difficulty Level | |
|---|---|---|---|---|
| 1 | Buns | Codeforces | Codeforces Beta Round #82 (Div. 2) | 4 |
| 2 | Remainders Game | Codeforces | Codeforces Round #360 (Div. 1) & Codeforces Round #360 (Div. 2) | 4 |
| 3 | Cutting Figure | Codeforces | Codeforces Round #122 (Div. 1) & Codeforces Round #122 (Div. 2) | 5 |
| 4 | GCD Table | Codeforces | Codeforces Round #196 (Div. 1) | 8 |
| 5 | Little Elephant and Triangle | Codeforces | Codeforces Round #136 (Div. 1) | 9 |
| 6 | Nephren Runs a Cinema | Codeforces | Codeforces Round #449 (Div. 1) | 10 |