問題詳情
7 假設 S 是一個堆疊（stack），一開始它的內容是空的（empty）。而 x 與 y 是兩個變數名稱，則執行下列的演算法後，S 的內容為何？（由左至右的順序代表堆疊的底部到上面） 
(A)5
(B)5 5
(C)2 8
(D)8
參考答案
無參考答案
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