花费 22 ms
[Usaco2019 Feb]The Great Revegetation

题目: The Great Revegetation(grass.cpp/in/out 1s 256M)长时间的干旱使得Farmer John的N块草地上牧草匮乏。随着雨季即将到来,现在应当是重新种 ...

Wed Oct 16 03:29:00 CST 2019 1 326

 
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