| Problem Name | Online Judge | Contest | Difficulty Level | |
|---|---|---|---|---|
| 1 | Order statistic set | SPOJ | 1 | |
| 2 | Cube Stacking | PKU | 1 | |
| 3 | Matrix | SPOJ | 2 | |
| 4 | Can you answer these queries VI | SPOJ | 2 | |
| 5 | Giá trị lớn nhất 3 | SPOJ | 2 | |
| 6 | Weird Function | SPOJ | 2 | |
| 7 | Almost Union-Find | UVA | 3 | |
| 8 | Lucy and Palindromes | CodeChef | 3 | |
| 9 | Robotic Sort | SPOJ | 3 | |
| 10 | Chef and medium problem | CodeChef | 3 | |
| 11 | Another Sequence Problem | SPOJ | 3 | |
| 12 | Twist and whirl -- want to cheat | SGU | 3 | |
| 13 | Card Shuffle | CodeChef | 3 | |
| 14 | Temple Queues | SPOJ | 3 | |
| 15 | Yet another range difference query! | SPOJ | 4 | |
| 16 | ``Dynamic'' Inversion | UVA | 5 | |
| 17 | Genetics | CodeChef | 5 | |
| 18 | Graph and Queries | UVA | 5 | |
| 19 | Version Controlled IDE | UVA | 5 | |
| 20 | Yet Another Array Queries Problem | Codeforces | Educational Codeforces Round 29 | 5 |
| 21 | Robotic Sort | UVA | 6 | |
| 22 | Restructuring Company | Codeforces | VK Cup 2015 - Finals, online mirror | 6 |
| 23 | Count The Indexes 2 | SPOJ | 7 | |
| 24 | Arnook Defensive Line | SPOJ | 7 | |
| 25 | Asistent | SPOJ | 8 | |
| 26 | Hitchhiking in the Baltic States | Codeforces | Codeforces Round #415 (Div. 1) | 9 |