推 boy5548:你是對的..題目有問題 02/08 13:19
→ jimmy5566:3q 02/08 18:07
Assume the string of"abcd"are sequentially push into a stack where element
in the stack can be pop during the period of pushing the letters.What
result is the impossible outcome of the stack permutation?
(A)acdb(B)bdac(C)cadb(D)dbac
這題是單選,可是好像只有(A)可以,其他都不行
有人可以指點一下嗎?感恩!
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