| Alias | Your score | Title | Solved # |
|---|---|---|---|
| CEOI17_oneway | One-Way Streets Batch | 487 | |
| CEOI17_palindromic | Palindromic Partitions Batch | 479 | |
| CEOI17_sure | Sure Bet Batch | 526 | |
| CEOI18_clo | Cloud Computing Batch | 611 | |
| CEOI18_fib | Fibonacci representations Batch | 16 | |
| CEOI18_glo | Global Warming Batch | 846 | |
| CEOI18_lot | Lottery Batch | 254 | |
| CEOI18_toy | Toys Batch | 322 | |
| CEOI18_tri | Triangles Batch | 120 | |
| CEOI19_amusementpark | Amusement Park Batch | 83 | |
| CEOI19_countsquares | Count Squares Batch | 34 | |
| CEOI19_cubeword | Cubeword Batch | 125 | |
| CEOI19_diameter | Dynamic Diameter Batch | 219 | |
| CEOI19_magictree | Magic Tree Batch | 223 | |
| CEOI19_scissors | Scissors and Tape Batch | 8 | |
| CEOI19_separator | Separator Batch | 13 | |
| CEOI19_skyscrapers | Building Skyscrapers Batch | 13 | |
| CEOI19_towerdefense | Tower Defense Batch | 11 | |
| CEOI20_chessrush | Chess Rush Batch | 12 | |
| CEOI20_cleaning | Spring cleaning Batch | 153 | |
| CEOI20_fancyfence | Fancy Fence Batch | 398 | |
| CEOI20_potion | The Potion of Great Power Interactive | 88 | |
| CEOI20_roads | Roads Batch | 28 | |
| CEOI20_startrek | Star Trek Batch | 69 | |
| CEOI21_diversity | Diversity Batch | 71 |
