| ID | Name | Tags | Submitters | % Correct | Average |
|---|---|---|---|---|---|
| rep | Reprezentanci firmy | oi ioi-elem d1 27 | 99 | 93% | 94 |
| rep | Reprezentacje różnicowe | oi 24 e1 | 157 | 82% | 87 |
| replace_p | G. Replace With Product | 4 | 100% | 100 | |
| res | Reszta | 60 | 81% | 84 | |
| res | Reszty | 46 | 78% | 90 | |
| res | Reszta | Very easy | 349 | 80% | 86 |
| res | Zadanie Restauracje | pa 2001 r3 | 81 | 83% | 92 |
| ret | Retransmisja | 12 | 66% | 72 | |
| ret | Zadanie Retransmisja | ontak 2012 | 8 | 62% | 66 |
| rew | Zwykły Sklep | 62 | 87% | 90 | |
| rew | Rewolucja | 25 | 76% | 83 | |
| rez | Task Lecture Halls Reservation | 56 | 89% | 96 | |
| rez | Task Lecture Halls Reservation | oi 4 e3 d2 | 531 | 85% | 92 |
| river | river | 2 | 100% | 100 | |
| rkk | Rosnące kopce kreta | 51 | 76% | 78 | |
| rl2 | Rozsypane literki 2 | 42 | 92% | 96 | |
| rli | Rozsypane literki | 88 | 81% | 93 | |
| rmq | Range minimum query | 12 | 25% | 63 | |
| rob | Robocik | oi 26 e1 | 148 | 39% | 46 |
| rob | Task Robinson | 17 | 41% | 67 |