| Gold 3문제 expand_more |
 3919 | Cow Hopscotch | USACO 2015 February Gold | 1 | 2 | 50.00% |
| 3920 | Censoring | USACO 2015 February Gold | 0 | 1 | 0.00% |
| 3921 | Fencing the Herd | USACO 2015 February Gold | 0 | 0 | |
| Silver 3문제 expand_more |
 3922 | Censoring (Silver) | USACO 2015 February Silver | 1 | 12 | 8.33% |
| 3923 | Cow Hopscotch (Silver) | USACO 2015 February Silver | 0 | 1 | 0.00% |
| 3924 | Superbull | USACO 2015 February Silver | 1 | 2 | 50.00% |
| Bronze 3문제 expand_more |
 3925 | Censoring translate | USACO 2015 February Bronze | 5 | 7 | 71.43% |
| 3926 | COW | USACO 2015 February Bronze | 11 | 17 | 64.71% |
| 3927 | Cow Hopscotch | USACO 2015 February Bronze | 0 | 0 | |
