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依此从每筐拿出1,2,3...10个包子一起称看重量个位数是多少, 按照9的乘法口诀可知, 拿了几个包子那筐是次品 :P
shou
(小受)
(#239357@0)
Last Updated: 2001-10-27
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不是微软的试题,也不是考程序员的试题。有十笼包子,每笼有十个,其中九笼重量是一斤,每个一两,有一笼是九两,每个九钱。给你一杆称,只称一次,你能否指出是哪一笼包子短斤少两?
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