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QOJ
Kategori: 2019-2020 Season
| Kategori | #(Yarış.) | #(Prob.) | |
|---|---|---|---|
| USACO 2019 December Contest (Platinum) | A B C | 3 | |
| USACO 2020 January Contest (Platinum) | A B C | 3 | |
| USACO 2020 February Contest (Platinum) | A B C | 3 | |
| USACO 2020 US Open Contest (Platinum) | A B C | 3 |