BZOJ 1641: [Usaco2007 Nov]Cow Hurdles 奶牛跨栏 (floyd)
1641: [Usaco2007 Nov]Cow Hurdles 奶牛跨栏 # Time Limit: 5 Sec Memory Limit: 64 MB Submit: 531 Solved: 344 [Submit][Status][Discuss]
技术归档
这里保留完整的技术写作历史。较早的竞赛题解和课程笔记作为归档内容保存，不参与 首页精选；个人日记、面试记录和敏感内容不会在正式站点发布。
2016
BZOJ 1640/1692 : [Usaco2007 Nov]Best Cow Line 队列变换 (贪心)
1640: [Usaco2007 Nov]Best Cow Line 队列变换 # Time Limit: 5 Sec Memory Limit: 64 MB Submit: 710 Solved: 373 [Submit][Status][Discuss]
BZOJ 1639: [Usaco2007 Mar]Monthly Expense 月度开支 (二分)
·3 分钟
1639: [Usaco2007 Mar]Monthly Expense 月度开支 # Time Limit: 5 Sec Memory Limit: 64 MB Submit: 767 Solved: 381 [Submit][Status][Discuss]
BZOJ 1637: [Usaco2007 Mar]Balanced Lineup (前缀和乱搞)
1637: [Usaco2007 Mar]Balanced Lineup # Time Limit: 5 Sec Memory Limit: 64 MB Submit: 503 Solved: 336 [Submit][Status][Discuss]
BZOJ 1635: [Usaco2007 Jan]Tallest Cow 最高的牛 (差分序列（前缀和的逆）)
1635: [Usaco2007 Jan]Tallest Cow 最高的牛 # Time Limit: 5 Sec Memory Limit: 64 MB Submit: 472 Solved: 278 [Submit][Status][Discuss]
BZOJ 1634: [Usaco2007 Jan]Protecting the Flowers 护花(贪心)
1634: [Usaco2007 Jan]Protecting the Flowers 护花 # Time Limit: 5 Sec Memory Limit: 64 MB Submit: 605 Solved: 383 [Submit][Status][Discuss]
BZOJ 1632: [Usaco2007 Feb]Lilypad Pond (BFS,dp)
1632: [Usaco2007 Feb]Lilypad Pond # Time Limit: 5 Sec Memory Limit: 64 MB Submit: 496 Solved: 153 [Submit][Status][Discuss]
BZOJ 1630/2023: [Usaco2005 Nov]Ant Counting 数蚂蚁 （母函数）
2023: [Usaco2005 Nov]Ant Counting 数蚂蚁 # Time Limit: 4 Sec Memory Limit: 64 MB Submit: 149 Solved: 85 [Submit][Status][Discuss]
BZOJ 1629: [Usaco2007 Demo]Cow Acrobats (贪心)
1629: [Usaco2007 Demo]Cow Acrobats # Time Limit: 5 Sec Memory Limit: 64 MB Submit: 771 Solved: 398 [Submit][Status][Discuss]
BZOJ 1628: [Usaco2007 Demo]City skyline (单调栈)
1628: [Usaco2007 Demo]City skyline # Time Limit: 5 Sec Memory Limit: 64 MB Submit: 396 Solved: 317 [Submit][Status][Discuss]
BZOJ 1627: [Usaco2007 Dec]穿越泥地 (BFS)
1627: [Usaco2007 Dec]穿越泥地 # Time Limit: 5 Sec Memory Limit: 64 MB Submit: 624 Solved: 411 [Submit][Status][Discuss]
BZOJ 1626: [Usaco2007 Dec]Building Roads 修建道路 (MST)
1626: [Usaco2007 Dec]Building Roads 修建道路 # Time Limit: 5 Sec Memory Limit: 64 MB Submit: 1362 Solved: 541 [Submit][Status][Discuss]
BZOJ 1624: [Usaco2008 Open] Clear And Present Danger 寻宝之路 (Floyd)
1624: [Usaco2008 Open] Clear And Present Danger 寻宝之路 # Time Limit: 5 Sec Memory Limit: 64 MB Submit: 507 Solved: 345 [Submit][Status][Discuss]
BZOJ 1623: [Usaco2008 Open]Cow Cars 奶牛飞车 (贪心)
1623: [Usaco2008 Open]Cow Cars 奶牛飞车 # Time Limit: 5 Sec Memory Limit: 64 MB Submit: 386 Solved: 266 [Submit][Status][Discuss]
BZOJ 1622: [Usaco2008 Open]Word Power 名字的能量 (暴力)
·2 分钟
1622: [Usaco2008 Open]Word Power 名字的能量 # Time Limit: 5 Sec Memory Limit: 64 MB Submit: 462 Solved: 228 [Submit][Status][Discuss]
BZOJ1621: [Usaco2008 Open]Roads Around The Farm分岔路口 (DFS)
1621: [Usaco2008 Open]Roads Around The Farm分岔路口 # Time Limit: 5 Sec Memory Limit: 64 MB Submit: 698 Solved: 513 [Submit][Status][Discuss]
BZOJ 1620: [Usaco2008 Nov]Time Management 时间管理 (贪心)
1620: [Usaco2008 Nov]Time Management 时间管理 # Time Limit: 5 Sec Memory Limit: 64 MB Submit: 636 Solved: 387 [Submit][Status][Discuss]
BZOJ1619: [Usaco2008 Nov]Guarding the Farm 保卫牧场 （BFS）
1619: [Usaco2008 Nov]Guarding the Farm 保卫牧场 # Time Limit: 5 Sec Memory Limit: 64 MB Submit: 661 Solved: 292 [Submit][Status][Discuss]
BZOJ 1618: [Usaco2008 Nov]Buying Hay 购买干草 (完全背包)
1618: [Usaco2008 Nov]Buying Hay 购买干草 # Time Limit: 5 Sec Memory Limit: 64 MB Submit: 906 Solved: 456 [Submit][Status][Discuss]
BZOJ 1617: [Usaco2008 Mar]River Crossing渡河问题 (DP)
1617: [Usaco2008 Mar]River Crossing渡河问题 # Time Limit: 5 Sec Memory Limit: 64 MB Submit: 837 Solved: 606 [Submit][Status][Discuss]