单选题:有6个元素以6,5,4,3,2,1的顺序进栈,则\_\_\_\_不是合法的出栈序列。
有6个元素以6,5,4,3,2,1的顺序进栈,则\_\_\_\_不是合法的出栈序列。@[C](2)
A. 5,4,3,6,1,2
B. 4,5,3,1,2,6
C. 3,4,6,5,2,1
D. 2,3,4,1,5,6
A.5,4,3,6,1,2
B.4,5,3,1,2,6
C.3,4,6,5,2,1
D.2,3,4,1,5,6
答案:C
A. 5,4,3,6,1,2
B. 4,5,3,1,2,6
C. 3,4,6,5,2,1
D. 2,3,4,1,5,6
A.5,4,3,6,1,2
B.4,5,3,1,2,6
C.3,4,6,5,2,1
D.2,3,4,1,5,6
答案:C