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| ID | Nazwa | Znaczniki | Zgłosiło | %Rozwiązało | Średnio |
|---|---|---|---|---|---|
| ele | Elektrownie i fabryki [B] | 2 | 100% | 100 | |
| ele | Elektrownie i fabryki [B] | pa 2020 r2 b | 78 | 82% | 87 |
| eliksir | Eliksir | 74 | 87% | 93 | |
| r0a | Empatia | 868 | 91% | 93 | |
| eraser | eraser | 1 | 100% | 100 | |
| escape | escape | 1 | 100% | 100 | |
| ese | Esej | oig 12 e2 | 59 | 45% | 55 |
| ese | Esej | 9 | 44% | 70 | |
| a7a | Euklides | 763 | 93% | 94 | |
| euler | euler | 2 | 100% | 100 | |
| exp | Experience | ejoi 2017 d2 | 11 | 63% | 67 |
| exp | Exponents | boi 2025 d2 | 6 | 16% | 26 |
| fairphoto | fairphoto | 2 | 100% | 100 | |
| czy | Faktoryzacja wielu liczb | sito Średnie | 520 | 81% | 86 |
| fan | Fancy Fence | 13 | 84% | 87 | |
| far | Ciąg Farey'a | 3 | 100% | 100 | |
| far | Farma | oig 16 e1 otwarta | 1084 | 93% | 96 |
| far | Farmer Bajtek i Tabletki | 185 | 95% | 96 | |
| far | Farmer Jan | 7 | 14% | 21 | |
| fjaf | Farmer John Actually Farms / USACO Bronze | 5 | 40% | 65 |