Q2. Write a program that reads repeatedly from the keyboard a prefix expression, converts it to a fully parenthesized infix expression, and determines the value of the expression. Your program must use a stack. Assume each entered prefix expression contains only integer numbers and the *, /, +, - operators. After reading and processing a prefix expression, your program should ask the user if he/she wants to enter another expression as shown in the example below. Example: Enter a prefix expression: + 5 * 10 2 The corresponding infix expression is: (5 + (10 * 2)) and its value is 25 Do you want to enter another expression (Y/N)? Y Enter a prefix expression: / * 3 2 - 7 4 The corresponding infix expression is: ((3 * 2)/(7 - 4) and its value is 2 Do you want to enter another expression (Y/N)? N

Q2. Write a program that reads repeatedly from the keyboard a prefix expression, converts it to a fully parenthesized infix expression, and determines the value of the expression. Your program must use a stack. Assume each entered prefix expression contains only integer numbers and the , /, +, - operators. After reading and processing a prefix expression, your program should ask the user if he/she wants to enter another expression as shown in the example below. Example: Enter a prefix expression: + 5 10 2 The corresponding infix expression is: (5 + (10 * 2)) and its value is 25 Do you want to enter another expression (Y/N)? Y Enter a prefix expression: / * 3 2 - 7 4 The corresponding infix expression is: ((3 * 2)/(7 - 4) and its value is 2 Do you want to enter another expression (Y/N)? N

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Q2. Write a program that reads repeatedly from the keyboard a prefix expression, converts it to a
fully parenthesized infix expression, and determines the value of the expression. Your
program must use a stack. Assume each entered prefix expression contains only integer numbers
and the *, /, +, - operators. After reading and processing a prefix expression, your program should
ask the user if he/she wants to enter another expression as shown in the example below.
Ехample:
Enter a prefix expression: + 5 * 10 2
The corresponding infix expression is: (5 + (10 * 2)) and its value is 25
Do
you want to enter another expression (Y/N)? Y
Enter a prefix expression: / * 3 2 - 7 4
The corresponding infix expression is: ((3 * 2)/(7 - 4)) and its value is 2
Do you want to enter another expression (Y/N)? N

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