| #1700 | [Usaco2007 Jan]Problem Solving 解题 | |
| #1701 | [Usaco2007 Jan]Cow School牛学校 | |
| #1702 | [Usaco2007 Mar]Gold Balanced Lineup 平衡的队列 | |
| #1703 | [Usaco2007 Mar]Ranking the Cows 奶牛排名 | |
| #1704 | [Usaco2007 Mar]Face The Right Way 自动转身机 | |
| #1705 | [Usaco2007 Nov]Telephone Wire 架设电话线 | |
| #1706 | [usaco2007 Nov]relays 奶牛接力跑 | |
| #1707 | [Usaco2007 Nov]tanning分配防晒霜 | |
| #1708 | [Usaco2007 Oct]Money奶牛的硬币 | |
| #1709 | [Usaco2007 Oct]Super Paintball超级弹珠 | |
| #1710 | [Usaco2007 Open]Cheappal 廉价回文 | |
| #1711 | [Usaco2007 Open]Dining吃饭 | |
| #1712 | [Usaco2007 China]Summing Sums 加密 | |
| #1713 | [Usaco2007 China]The Bovine Accordion and Banjo Orchestra 音乐会 | |
| #1714 | [Usaco2007 China]Treasure 财富 | |
| #1715 | [Usaco2006 Dec]Wormholes 虫洞 | |
| #1716 | [Usaco2006 Dec]The Fewest Coins 找零钱 | |
| #1717 | [Usaco2006 Dec]Milk Patterns 产奶的模式 | |
| #1718 | [Usaco2006 Jan] Redundant Paths 分离的路径 | |
| #1719 | [Usaco2006 Jan] Roping the Field 麦田巨画 | |
| #1720 | [Usaco2006 Jan]Corral the Cows 奶牛围栏 | |
| #1721 | [Usaco2006 Mar]Ski Lift 缆车支柱 | |
| #1722 | [Usaco2006 Mar] Milk Team Select 产奶比赛 | |
| #1723 | [Usaco2009 Feb]The Leprechaun 寻宝 | |
| #1724 | [Usaco2006 Nov]Fence Repair 切割木板 | |
| #1725 | [Usaco2006 Nov]Corn Fields牧场的安排 | |
| #1726 | [Usaco2006 Nov]Roadblocks第二短路 | |
| #1727 | [Usaco2006 Open]The Milk Queue 挤奶队列 | |
| #1728 | [Usaco2006 Open]Two-Headed Cows 双头牛 | |
| #1729 | [Usaco2005 dec]Cow Patterns 牛的模式匹配 | |
| #1730 | [Usaco2005 dec]Barn Expansion 牛棚扩张 | |
| #1731 | [Usaco2005 dec]Layout 排队布局 | |
| #1732 | [usaco2005 feb]Jersey Politics 牛的政治 | |
| #1733 | [Usaco2005 feb]Secret Milking Machine 神秘的挤奶机 | |
| #1734 | [Usaco2005 feb]Aggressive cows 愤怒的牛 | |
| #1735 | [Usaco2005 jan]Muddy Fields 泥泞的牧场 | |
| #1736 | [Usaco2005 jan]The Wedding Juicer 婚宴的榨汁机 | |
| #1737 | [Usaco2005 jan]Naptime 午睡时间 | |
| #1738 | [Usaco2005 mar]Ombrophobic Bovines 发抖的牛 | |
| #1739 | [Usaco2005 mar]Space Elevator 太空电梯 | |
| #1740 | [Usaco2005 mar]Yogurt factory 奶酪工厂 | |
| #1741 | [Usaco2005 nov]Asteroids 穿越小行星群 | |
| #1742 | [Usaco2005 nov]Grazing on the Run 边跑边吃草 | |
| #1743 | [Usaco2005 nov]Walk the Talk | |
| #1744 | [Usaco2005 oct]Skiing 奶牛滑雪 | |
| #1745 | [Usaco2005 oct]Flying Right 飞行航班 | |
| #1746 | [Usaco2005 open]Lazy Cows | |
| #1747 | [Usaco2005 open]Expedition 探险 | |
| #1748 | [Usaco2005 open]Around the world 环球飞行 | |
| #1749 | [usaco2005 open]Landscaping 地形改造 | |
| #1750 | [Usaco2005 qua]Apple Catching | |
| #1751 | [Usaco2005 qua]Lake Counting | |
| #1752 | [Usaco2005 qua]Til the Cows Come Home | |
| #1753 | [Usaco2005 qua]Who's in the Middle | |
| #1754 | [Usaco2005 qua]Bull Math | |
| #1755 | [Usaco2005 qua]Bank Interest | |
| #1756 | Vijos1083 小白逛公园 | |
| #1757 | Apple 偷苹果 | |
| #1758 | [Wc2010]重建计划 | |
| #1759 | Let there be rainbows! | |
| #1760 | [Baltic2009]Triangulation | |
| #1761 | [Baltic2009]beetle | |
| #1762 | [Baltic2009]candy | |
| #1763 | [Baltic2009]subway | |
| #1764 | [Baltic2009]monument | |
| #1765 | [Baltic2009]rectangle | |
| #1766 | [Ceoi2009]photo | |
| #1767 | [Ceoi2009]harbingers | |
| #1768 | [Ceoi2009]logs | |
| #1769 | [Ceoi2009]tri | |
| #1770 | [Usaco2009 Nov]lights 燈 | |
| #1771 | [Usaco2009 Nov]cookie 誰請客 | |
| #1772 | [Usaco2009 Nov]rescue 拯救奶牛貝希 | |
| #1773 | [Usaco2009 Dec]Dizzy 头晕的奶牛 | |
| #1774 | [Usaco2009 Dec]Toll 过路费 | |
| #1775 | [Usaco2009 Dec]Vidgame 电视游戏问题 | |
| #1776 | [Usaco2010 Hol]cowpol 奶牛政坛 | |
| #1777 | [Usaco2010 Hol]rocks 石头木头 | |
| #1778 | [Usaco2010 Hol]Dotp 驱逐猪猡 | |
| #1779 | [Usaco2010 Hol]Cowwar 奶牛战争 | |
| #1780 | [Usaco2010 Feb]corral 覆盖牛棚 | |
| #1781 | [Usaco2010 Feb]Ice 冰上 | |
| #1782 | [Usaco2010 Feb]slowdown 慢慢游 | |
| #1783 | [Usaco2010 Jan]Taking Turns | |
| #1784 | [Usaco2010 Jan]island | |
| #1785 | [Usaco2010 Jan]telephone | |
| #1786 | [Ahoi2008]Pair 配对 | |
| #1787 | [Ahoi2008]Meet 紧急集合 | |
| #1788 | [Ahoi2008]Calculator 计算器
| |
| #1789 | [Ahoi2008]Necklace Y型项链
| |
| #1790 | [Ahoi2008]Rectangle 矩形藏宝地
| |
| #1791 | [Ioi2008]Island 岛屿
| |
| #1792 | [Ioi2008]TYPE PRINTER 打印机 | |
| #1793 | [Ioi2008]Fish 鱼
| |
| #1794 | [Ioi2008]Linear Garden | |
| #1795 | [Ioi2008]Pyramid Base 金字塔地基
| |
| #1796 | [Ioi2008]Teleporters 传送器 | |
| #1797 | [Ahoi2009]Mincut 最小割 | |
| #1798 | [Ahoi2009]Seq 维护序列seq
| |
| #1799 | [Ahoi2009]self 同类分布 | |
黑暗爆炸OJ
