Chapter 12, Problem 12.14E

Program Plan Intro

Program Plan:

• Read the expression including whitespaces using scanf.
• Inside while loop the function evaluatePostFix perform following changes:
• Within if statement, declare a char array value.
• Next, use while loop to read each character from exp array and store it in value array.
• Use function atoi to convert the value stored in value array in integer and push it inside stack.
• Run else statement only if the expression is not blank space.

Program Description:

This program is the modified version of program provided in exercise 12.13 that can evaluate postfix expression for integers larger than 9.