bzoj1719 [Usaco2006 Jan] Roping the Field 麥田巨畫

1719: [Usaco2006 Jan] Roping the Field 麥田巨畫 Time Limit: 5 Sec  Memory Limit: 64 MB Submit: 80  Solved: 24 [ Submit][ Status][ Discuss] Description Farmer John is quite the nature artist: he often cons

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