Consider the algorithm to convert an infix expression to a postfix expression. Suppose that you have read 10 input characters during a conversion and that the stack now contains these 3 tokens: *, (, with * at the bottom, and at the top.

Now, suppose that you read and process the 11th token of the input. List the content of the stack for the case where the 11th token is:

a. A number:
b. A (:
c. A ):
d. A minus sign:
e. A division sign:

a. * ( +

b. * ( + (

c. *

d. * -

e. * ( + /

Explanation:

A stack is a data structure that holds data where the last data in the structure is retrieved before the first. The stack structure above can hold the characters *, ( and + of character stored in the stack. The content of the stack that matches the three characters and their 11th token is listed above.

answer; i do believe its (d) modem;

given the lack of choices, i'm gonna wing it and say that pushing your car off a cliff might not be the best idea. your car might sustain damage from the fall and will probably result in the car being too damaged to jump start.

if that's not good enough, avoid filling the car with bees. bees might get agitated when trapped or during the moving process, and might result in death or painful stings that will make jump starting your car very difficult. but in the event that you do choose to fill your car with bees, remember to wear protective gear!