| ID | Name | Tags | Submitters | % Correct | Average |
|---|---|---|---|---|---|
| roz | Task Difference | oi 18 e2 d1 | 674 | 74% | 83 |
| roz | Zadanie Rozkład Fibonacciego | oi 19 e2 d2 | 612 | 88% | 94 |
| roz | Rozliczenia | oi 26 e2 d0 | 270 | 55% | 72 |
| roz | Różnorodność | oi 25 e1 | 170 | 47% | 67 |
| row | Równoważne programy | oi 23 e3 d0 | 161 | 78% | 82 |
| row | Task Word Equations | oi 5 e2 d1 | 378 | 58% | 80 |
| rot | Task Tree Rotations | oi 18 e2 d2 | 216 | 58% | 69 |
| rod | Task Tree Rotations 2 | oi 18 e2 d2 | 76 | 43% | 75 |
| rob | Robocik | oi 26 e1 | 151 | 39% | 46 |
| rob | Task Robinson | oi 15 e1 | 14 | 35% | 54 |
| rez | Task Lecture Halls Reservation | oi 4 e3 d2 | 545 | 85% | 92 |
| rep | Reprezentanci firmy | oi ioi-elem d1 27 | 105 | 94% | 95 |
| rep | Reprezentacje różnicowe | oi 24 e1 | 159 | 82% | 88 |
| rem | Remont | oi 26 e3 d1 | 356 | 64% | 73 |
| rek | Task Recursive Ant | oi 4 e2 d2 | 24 | 58% | 70 |
| red | Redukcja połączeń | oi 32 e3 d2 | 50 | 36% | 59 |
| ran | Task Rendezvous | oi 19 e1 | 171 | 67% | 77 |
| rak | Task Rockets | oi 6 e2 d0 | 25 | 24% | 52 |
| raj | Task Rally | oi 21 e2 d2 | 357 | 67% | 77 |
| pus | Task Empty Cuboids | oi 6 e1 | 25 | 56% | 87 |