bzoj 3384: [Usaco2004 Nov]Apple Catching 接苹果
3384: [Usaco2004 Nov]Apple Catching 接苹果 Time Limit: 1 Sec Memory Limit: 128 MB Description 很少有人知道奶牛爱吃苹果．农夫约翰...
bzoj题解
bzoj 1625: [Usaco2007 Dec]宝石手镯
1625: [Usaco2007 Dec]宝石手镯 Time Limit: 5 Sec Memory Limit: 64 MB Description 贝茜在珠宝店闲逛时，买到了一个中意的手镯。很自然地，她想从她收集的 N(...
bzoj 1677: [Usaco2005 Jan]Sumsets 求和
1677: [Usaco2005 Jan]Sumsets 求和 Time Limit: 5 Sec Memory Limit: 64 MB Description Farmer John commanded his cows...
bzoj 1689: [Usaco2005 Open] Muddy roads 泥泞的路
1689: [Usaco2005 Open] Muddy roads 泥泞的路 Time Limit: 5 Sec Memory Limit: 64 MB Description Farmer John has a prob...
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