
The things you should know:
Problem Set
| Serial | Name | Problem Setter | 
| A | Shamim Hafiz | |
| B | Ivan Krasilnikov | |
| C | Sohel Hafiz | |
| D | Sohel Hafiz | |
| E | Ivan Krasilnikov | |
| F | Mohammad Mahmudur Rahman | |
| G | Sohel Hafiz | |
| H | Sohel Hafiz | |
| I | Sohel Hafiz | 
Thanks to:
Thanks to Prof. Miguel A. Revilla and Other Valladolid OJ team members.