| 번호 | 제목 |
|---|---|
| 19481 | Tabelle |
| 19482 | Unrumpf |
| 19483 | Vier |
| 19484 | Weltall |
| 19485 | Gambling |
| 19486 | Colourings |
| 19487 | Counter-manifestation |
| 19488 | Championships |
| 19489 | Neon |
| 19490 | Robots |
| 19491 | Equation |
| 19492 | Hay |
| 19493 | Gym |
| 19494 | Triangles |
| 19495 | Square Function |
| 19496 | Guess by Remainder |
| 19497 | Subtract if Greater! |
| 19498 | Eastern Subregional |
| 19499 | K-transform |
| 19500 | Suffix Array for Thue-Morse |