螞蟻走棒子的問題 - 拼圖

By Jake
at 2009-11-24T13:13
at 2009-11-24T13:13
Table of Contents
看了那麼多機率問題, 換個別的吧.
之前看書看到的, 覺得蠻有趣, 希望沒有 OP 吧
假設一根長 1m 的棒子, 上面有散佈了一百隻螞蟻, 牠們步行速度是 1cm/s
螞蟻可以往左或往右走, 但當兩隻螞蟻迎面遇到, 牠會就會立刻回頭轉身
走. 當螞蟻走到棒子盡頭就會掉下去.
請問最久要多久, 棒子才會沒有螞蟻?
--
之前看書看到的, 覺得蠻有趣, 希望沒有 OP 吧
假設一根長 1m 的棒子, 上面有散佈了一百隻螞蟻, 牠們步行速度是 1cm/s
螞蟻可以往左或往右走, 但當兩隻螞蟻迎面遇到, 牠會就會立刻回頭轉身
走. 當螞蟻走到棒子盡頭就會掉下去.
請問最久要多久, 棒子才會沒有螞蟻?
--
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