| 1702 | [Usaco2007 Mar]Gold Balanced Lineup 平衡的队列省选 | 0 |
| 1703 | [Usaco2007 Mar]Ranking the Cows 奶牛排名省选 | 0 |
| 1704 | [Usaco2007 Mar]Face The Right Way 自动转身机省选 | 0 |
| 1705 | [Usaco2007 Nov]Telephone Wire 架设电话线省选 | 0 |
| 1706 | [usaco2007 Nov]relays 奶牛接力跑省选 | 0 |
| 1707 | [Usaco2007 Nov]tanning分配防晒霜省选 | 0 |
| 1708 | [Usaco2007 Oct]Money奶牛的硬币省选 | 1 |
| 1709 | [Usaco2007 Oct]Super Paintball超级弹珠省选 | 0 |
| 1710 | [Usaco2007 Open]Cheappal 廉价回文省选 | 0 |
| 1711 | [Usaco2007 Open]Dining吃饭省选 | 1 |
| 1712 | [Usaco2007 China]Summing Sums 加密省选 | 0 |
| 1713 | [Usaco2007 China]The Bovine Accordion and Banjo Orchestra 音乐会省选 | 0 |
| 1714 | [Usaco2007 China]Treasure 财富省选 | 0 |
| 1715 | [Usaco2006 Dec]Wormholes 虫洞省选 | 3 |
| 1716 | [Usaco2006 Dec]The Fewest Coins 找零钱省选 | 0 |
| 1717 | [Usaco2006 Dec]Milk Patterns 产奶的模式省选 | 1 |
| 1718 | [Usaco2006 Jan] Redundant Paths 分离的路径省选 | 0 |
| 1719 | [Usaco2006 Jan] Roping the Field 麦田巨画省选 | 0 |
| 1720 | [Usaco2006 Jan]Corral the Cows 奶牛围栏省选 | 0 |
| 1721 | [Usaco2006 Mar]Ski Lift 缆车支柱省选 | 0 |
| 1722 | [Usaco2006 Mar] Milk Team Select 产奶比赛省选 | 0 |
| 1723 | [Usaco2009 Feb]The Leprechaun 寻宝省选 | 0 |
| 1724 | [Usaco2006 Nov]Fence Repair 切割木板省选 | 1 |
| 1725 | [Usaco2006 Nov]Corn Fields牧场的安排省选 | 0 |
| 1726 | [Usaco2006 Nov]Roadblocks第二短路省选 | 0 |
| 1727 | [Usaco2006 Open]The Milk Queue 挤奶队列省选 | 0 |
| 1728 | [Usaco2006 Open]Two-Headed Cows 双头牛省选 | 0 |
| 1729 | [Usaco2005 dec]Cow Patterns 牛的模式匹配省选 | 0 |
| 1730 | [Usaco2005 dec]Barn Expansion 牛棚扩张省选 | 0 |
| 1731 | [Usaco2005 dec]Layout 排队布局省选 | 1 |
| 1732 | [usaco2005 feb]Jersey Politics 牛的政治省选 | 0 |
| 1733 | [Usaco2005 feb]Secret Milking Machine 神秘的挤奶机省选 | 0 |
| 1734 | [Usaco2005 feb]Aggressive cows 愤怒的牛省选 | 0 |
| 1735 | [Usaco2005 jan]Muddy Fields 泥泞的牧场省选 | 0 |
| 1736 | [Usaco2005 jan]The Wedding Juicer 婚宴的榨汁机省选 | 0 |
| 1737 | [Usaco2005 jan]Naptime 午睡时间省选 | 0 |
| 1738 | [Usaco2005 mar]Ombrophobic Bovines 发抖的牛省选 | 0 |
| 1739 | [Usaco2005 mar]Space Elevator 太空电梯省选 | 2 |
| 1740 | [Usaco2005 mar]Yogurt factory 奶酪工厂省选 | 3 |
| 1741 | [Usaco2005 nov]Asteroids 穿越小行星群省选 | 0 |
| 1742 | [Usaco2005 nov]Grazing on the Run 边跑边吃草省选 | 1 |
| 1743 | [Usaco2005 nov]Walk the Talk省选 | 0 |
| 1744 | [Usaco2005 oct]Skiing 奶牛滑雪省选 | 0 |
| 1745 | [Usaco2005 oct]Flying Right 飞行航班省选 | 0 |
| 1746 | [Usaco2005 open]Lazy Cows省选 | 0 |
| 1747 | [Usaco2005 open]Expedition 探险省选 | 0 |
| 1748 | [Usaco2005 open]Around the world 环球飞行 省选 | 0 |
| 1749 | [usaco2005 open]Landscaping 地形改造省选 | 0 |
| 1750 | [Usaco2005 qua]Apple Catching省选 | 0 |
| 1751 | [Usaco2005 qua]Lake Counting省选 | 0 |
