 1741 | 독서대회 | USACO NOV07 | 22 | 41 | 53.66% |
 3640 | 잡기놀이(catch that cow) | USACO 2007 US Open Silver | 32 | 77 | 41.56% |
| 1424 | cow sorting | USACO 2007 February Gold | 33 | 274 | 12.04% |
 2109 | 꿀꿀이 축제(Festival) | usaco 2007 February silver | 316 | 786 | 40.20% |
| 1494 | 소들의 장애물 넘기 | USACO 2007, poj 3615 | 28 | 72 | 38.89% |
| 1452 | 팰린드롬 | USACO 2007 Open Gold, poj 3280 | 8 | 34 | 23.53% |
| 1090 | ID 만들기 | USACO 2007,poj 3280 | 23 | 73 | 31.51% |
| 1079 | jams | USACO 2007 March Silver, poj 3272 | 7 | 25 | 28.00% |
 1020 | buildings | USACO 2007 Open Silver, poj 3277 | 121 | 752 | 16.09% |
 7082 | 책장2 | USACO December 2007 Bronze 2번 | 33 | 115 | 28.70% |
 2287 | 맛있는 걸 좋아하는 소들 | USACO December 2007 Gold | 198 | 770 | 25.71% |
