回复：回复：回复：C H A G E　ＦＲＯＭ 3)

来源: guest007 于 2010-02-06 17:17:37 [] [旧帖] [给我悄悄话] 阅读数 : 0 (146 bytes)
回答: 回复：C H A G E　ＦＲＯＭ 3) 由 guest007 于 2010-02-03 13:09:13

it was by assuming no shotting in the air is allowed.

now here is a tricky add-on: what the solution is if shotting in the air is allowed?

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