Prefix to Infix Program Plan: Include required header files. Give function prototype “prefix_To_Infix ()”. Define the function “main ()”. Inside this function, Declare a string variable “prefixStr”. Get the prefix string from the user and store it in a variable “prefixStr”. Do until the length of the string is equal to 0 using “while” loop. Create an object “isStream” for input file stream. Call the function “prefix_To_Infix ()” by passing the object “isStream” as the argument. Get another prefix string from the user. Return the statement. Give function definition for “prefix_To_Infix ()”. Get the first character and store it in a variable “ch”. Do until the variable “ch” detects a space using “while” loop. Get a character using “get ()” function. Get the first character using “peek ()” function. Check if the character is a digit. Declare a variable “num”. Create an object “ostr” from output string stream. Get and print the number. Return the object. Else, Get the character using “get ()” function and store it in a variable “ch”. Call the function “prefix_To_Infix ()” and store the returned expression in a string variable “expr1”. Call the function “prefix_To_Infix ()” and store the returned expression in a string variable “expr2”. Check if the character is not any mathematical symbol like “+”, “-”, “*” and “/”. Exit. Return “expr1”, “ch”, and “expr2” .

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Chapter 14, Problem 11PC

Program Plan Intro

Prefix to Infix

Program Plan:

Include required header files.

Give function prototype “prefix_To_Infix ()”.

Define the function “main ()”. Inside this function,

Declare a string variable “prefixStr”.

Get the prefix string from the user and store it in a variable “prefixStr”.

Do until the length of the string is equal to 0 using “while” loop.

Create an object “isStream” for input file stream.

Call the function “prefix_To_Infix ()” by passing the object “isStream” as the argument.

Get another prefix string from the user.

Return the statement.

Give function definition for “prefix_To_Infix ()”.

Get the first character and store it in a variable “ch”.

Do until the variable “ch” detects a space using “while” loop.

Get a character using “get ()” function.

Get the first character using “peek ()” function.

Check if the character is a digit.

Declare a variable “num”.

Create an object “ostr” from output string stream.

Get and print the number.

Return the object.

Else,

Get the character using “get ()” function and store it in a variable “ch”.

Call the function “prefix_To_Infix ()” and store the returned expression in a string variable “expr1”.

Call the function “prefix_To_Infix ()” and store the returned expression in a string variable “expr2”.

Check if the character is not any mathematical symbol like “+”, “-”, “*” and “/”.

Exit.

Return “expr1”, “ch”, and “expr2” .

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