cows
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NC24870 [USACO 2009 Dec G]Video Game Troubles
题目链接 题目 题目描述 Farmer John’s cows love their video games! FJ noticed that after playin…
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NC24083 [USACO 2017 Dec P]Greedy Gift Takers
NC24083 [USACO 2017 Dec P]Greedy Gift Takers 题目 题目描述 Farmer John’s nemesis, Farmer N…