| Platinum 3문제 expand_more |
 3998 | 능력주의 회사 | USACO 2017 January Platinum | 19 | 28 | 67.86% |
| 3999 | Building a Tall Barn | USACO 2017 January Platinum | 0 | 0 | |
| 4000 | Subsequence Reversal | USACO 2017 January Platinum | 1 | 4 | 25.00% |
| Gold 3문제 expand_more |
 4001 | 병아리 사진찍기 | USACO 2017 January Gold | 7 | 13 | 53.85% |
| 4002 | Hoof, Paper, Scissors | USACO 2017 January Gold | 1 | 1 | 100.00% |
| 4003 | 전진 우회전 좌회전 네비게이션 | USACO 2017 January Gold | 11 | 33 | 33.33% |
| Silver 3문제 expand_more |
| 4004 | Cow Dance Show | USACO 2017 January Silver | 2 | 4 | 50.00% |
| 4005 | Hoof, Paper, Scissors | USACO 2017 January Silver | 0 | 2 | 0.00% |
| 4006 | Secret Cow Code | USACO 2017 January Silver | 1 | 3 | 33.33% |
| Bronze 3문제 expand_more |
| 4007 | Don't Be Last! translate | USACO 2017 January Bronze | 0 | 0 | |
 4008 | 가위, 발굽, 종이 | USACO 2017 January Bronze | 13 | 33 | 39.39% |
| 4009 | 소 일으키기 translate | USACO 2017 January Bronze | 1 | 1 | 100.00% |
