問題詳情
1. Which of the following statements are true?
(A) When converting the infix expression a*(bte/d)*(e-l)+g to its postfix form, there are at most 4tokens in the stack at any moment.
(B) The postfix form of infix expression (a+b-c)*(d-e) is abc-+de-*
(C) The infix expression of postfix expression 3k-2m4+*+pab-*/ is((3-k)+2(m+4)/(p*(a-b))
(D) When converting the infix expression a*(b+c/d)*(c-) to its postfix form, there are at most 3 tokensin the stack at any moment.
參考答案
答案：[無官方正解]
難度：計算中-1
書單：沒有書單，新增
用户評論
【December Ann】評論
(A)正確(題目的infix有誤，應為a*(b+c/d)*(e-f)+g)(B)錯誤，應為ab+c-de-*(C)錯誤，應為(3-k)+2*(m+4)/(p*(a-b))(D)錯誤，應為最多4個tokens(題目的infix有誤，應為a*(b+c/d)*(e-f))