| Alias | Your score | Title | Solved # |
|---|---|---|---|
| CEOI19_diameter | Dynamic Diameter Batch | 231 | |
| CEOI19_magictree | Magic Tree Batch | 235 | |
| CEOI19_scissors | Scissors and Tape Batch | 8 | |
| CEOI19_separator | Separator Batch | 13 | |
| CEOI19_skyscrapers | Building Skyscrapers Batch | 15 | |
| CEOI19_towerdefense | Tower Defense Batch | 11 | |
| CEOI20_chessrush | Chess Rush Batch | 12 | |
| CEOI20_cleaning | Spring cleaning Batch | 160 | |
| CEOI20_fancyfence | Fancy Fence Batch | 435 | |
| CEOI20_potion | The Potion of Great Power Interactive | 101 | |
| CEOI20_roads | Roads Batch | 29 | |
| CEOI20_startrek | Star Trek Batch | 71 | |
| CEOI21_diversity | Diversity Batch | 79 | |
| CEOI21_ltriominoes | L-triominoes Batch | 21 | |
| CEOI21_newspapers | Newspapers Batch | 85 | |
| CEOI21_tortoise | Tortoise Batch | 17 | |
| CEOI21_wells | Wells Batch | 4 | |
| CEOI22_abracadabra | Abracadabra Batch | 143 | |
| CEOI22_drawing | Drawing Batch | 45 | |
| CEOI22_homework | Homework Batch | 256 | |
| CEOI22_measures | Measures Batch | 104 | |
| CEOI22_parking | Parking Batch | 32 | |
| CEOI22_prize | Prize Interactive | 58 | |
| CEOI23_avoid | How to Avoid Disqualification in 75 Easy Steps Interactive | 4 | |
| CEOI23_balance | Brought Down the Grading Server? Batch | 17 |
