大神们都在刷usaco，我也来水一水
1606: [Usaco2008 Dec]Hay For Sale 购买干草 裸背包
1607: [Usaco2008 Dec]Patting Heads 轻拍牛头 神转化，筛法
1609: [Usaco2008 Feb]Eating Together麻烦的聚餐 LIS
1610: [Usaco2008 Feb]Line连线游戏 排序
1611: [Usaco2008 Feb]Meteor Shower流星雨 BFS
1612: [Usaco2008 Jan]Cow Contest奶牛的比赛 floyed
1614: [Usaco2007 Jan]Telephone Lines架设电话线 二分
1615: [Usaco2008 Mar]The Loathesome Hay Baler麻烦的干草打包机 DFS
1616: [Usaco2008 Mar]Cow Travelling游荡的奶牛 递推
1617: [Usaco2008 Mar]River Crossing渡河问题 DP
1618: [Usaco2008 Nov]Buying Hay 购买干草 背包
1619: [Usaco2008 Nov]Guarding the Farm 保卫牧场 floodfill
1620: [Usaco2008 Nov]Time Management 时间管理 二分
1621: [Usaco2008 Open]Roads Around The Farm分岔路口 模拟
1622: [Usaco2008 Open]Word Power 名字的能量 暴力
1623: [Usaco2008 Open]Cow Cars 奶牛飞车 贪心
1624: [Usaco2008 Open] Clear And Present Danger 寻宝之路 floyed
1625: [Usaco2007 Dec]宝石手镯 背包
1626: [Usaco2007 Dec]Building Roads 修建道路 MST
1627: [Usaco2007 Dec]穿越泥地 BFS
1628: [Usaco2007 Demo]City skyline 单调栈
1629: [Usaco2007 Demo]Cow Acrobats 贪心 类似于国王游戏
1630: [Usaco2007 Demo]Ant Counting DP+滚动数组+前缀和
1631: [Usaco2007 Feb]Cow Party spfa
1632: [Usaco2007 Feb]Lilypad Pond 搜索
1633: [Usaco2007 Feb]The Cow Lexicon 牛的词典 DP
1634: [Usaco2007 Jan]Protecting the Flowers 护花 贪心
1635: [Usaco2007 Jan]Tallest Cow 最高的牛 差分
1636: [Usaco2007 Jan]Balanced Lineup RMQ
1637: [Usaco2007 Mar]Balanced Lineup 哈希+前缀和
1638: [Usaco2007 Mar]Cow Traffic 奶牛交通 递推+DP
1639: [Usaco2007 Mar]Monthly Expense 月度开支 二分
1640: [Usaco2007 Nov]Best Cow Line 队列变换 后缀数组
1641: [Usaco2007 Nov]Cow Hurdles 奶牛跨栏 floyed
1643: [Usaco2007 Oct]Bessie's Secret Pasture 贝茜的秘密草坪 DP
1644: [Usaco2007 Oct]Obstacle Course 障碍训练课 DP+BFS
1645: [Usaco2007 Open]City Horizon 城市地平线 线段树+思路题
1646: [Usaco2007 Open]Catch That Cow 抓住那只牛 spfa
1647: [Usaco2007 Open]Fliptile 翻格子游戏 暴力
1648: [Usaco2006 Dec]Cow Picnic 暴力+DFS
1649: [Usaco2006 Dec]Cow Roller Coaster DP
1650: [Usaco2006 Dec]River Hopscotch 二分+贪心
1651: [Usaco2006 Feb]Stall Reservations （前缀和+差分）/线段树+贪心
1652: [Usaco2006 Feb]Treats for the Cows 区间DP
1653: [Usaco2006 Feb]Backward Digit Sums 暴力+数学
1654: [Usaco2006 Jan]The Cow Prom 裸tarjan
1655: [Usaco2006 Jan] Dollar Dayz 背包+高精度
1657: [Usaco2006 Mar]Mooo 单调栈
1660: [Usaco2006 Nov]Bad Hair Day 单调栈
1661: [Usaco2006 Nov]Big Square 暴力
1662: [Usaco2006 Nov]Round Numbers 数学+数位统计+组合计数
1663: [Usaco2006 Open]赶集 DP
1664: [Usaco2006 Open]County Fair Events DP
1665: [Usaco2006 Open]The Climbing Wall spfa
1666: [Usaco2006 Oct]Another Cow Number Game 奶牛的数字游戏 模拟
1667: [Usaco2006 Oct]Cows on Skates滑旱冰的奶牛 spfa
1668: [Usaco2006 Oct]Cow Pie Treasures 馅饼里的财富 DP
1669: [Usaco2006 Oct]Hungry Cows饥饿的奶牛 LIS
1670: [Usaco2006 Oct]Building the Moat护城河的挖掘 裸凸包
1671: [Usaco2005 Dec]Knights of Ni BFS+思路题
1672: [Usaco2005 Dec]Cleaning Shifts 清理牛棚 线段树+DP
1673: [Usaco2005 Dec]Scales 背包
1674: [Usaco2005]Part Acquisition spfa
1675: [Usaco2005 Feb]Rigging the Bovine Election 暴力
1676: [Usaco2005 Feb]Feed Accounting饲料计算 差分
1677: [Usaco2005 Jan]Sumsets求和 递推/背包
1679: [Usaco2005 Jan]Moo Volume牛的呼声 前缀和
1680: [Usaco2005 Mar]Yogurt factory 贪心
1681: [Usaco2005 Mar]Checking an Alibi不在场的证明 spfa
1682: [Usaco2005 Mar]Out of Hay干草危机 MST
1683: [Usaco2005 Nov]City skyline 单调栈
1684: [Usaco2005 Oct]Close Encounter 暴力+精度
1685: [Usaco2005 Oct]Allowance津贴 贪心
1687: [Usaco2005 Open]Navigating the City 城市交通 BFS
1688: [Usaco2005 Open]Disease Manangement 疾病管理 状压DP
1689: [Usaco2005 Open] Muddy roads泥泞的道路 模拟/贪心
2014: [Usaco2010 Feb]Chocolate Buying 背包+贪心
2015: [Usaco2010 Feb]Chocolate Giving spfa
2016: [Usaco2010]Chocolate Eating 二分
2018: [Usaco2009 Nov]农场技艺大赛 排序
2019: [Usaco2009 Nov]找工作 spfa
2020: [Usaco2010 Jan]Buying Feed, II 排序
2023: [Usaco2005 Nov]Ant Counting 数蚂蚁
2100: [Usaco2010 Dec]Apple Delivery dijkstra （故意卡spfa）
2102: [Usaco2010 Dec]The Trough Game 暴力