| Gold 3문제 expand_more |
| 3909 | Cow Rectangles | USACO 2015 January Gold | 0 | 0 | |
| 3910 | Moovie Mooving | USACO 2015 January Gold | 0 | 0 | |
 3911 | Grass Cownoisseur | USACO 2015 January Gold | 1 | 3 | 33.33% |
| Silver 3문제 expand_more |
| 3912 | Stampede | USACO 2015 January Silver | 0 | 0 | |
| 3913 | Cow Routing | USACO 2015 January Silver | 0 | 0 | |
| 3914 | Meeting Time | USACO 2015 January Silver | 0 | 0 | |
| Bronze 4문제 expand_more |
| 3915 | Cow Routing | USACO 2015 January Bronze | 0 | 0 | |
| 3916 | Cow Routing II | USACO 2015 January Bronze | 0 | 0 | |
| 3917 | It's All About the Base | USACO 2015 January Bronze | 0 | 0 | |
| 3918 | Meeting Time | USACO 2015 January Bronze | 0 | 0 | |
