Chapter 13, Problem 1PE

Program Plan Intro

Recursive Multiplication

Program Plan:

• Define the “main()” function:
  • Initializes the variable “n1” is “0”
  • Initializes the variable “n2” is “0”
  • Check the value of “n1”.
    • If it is less than or equal to “0”, then get the first number from the user and store it to the variable “n1”.
  • Check the value of “n2”.
    • If it is less than or equal to “0”, then get the second number from the user and store it to the variable “n2”.
  • Call the function “multiplyRecursive()” and pass the two arguments “n1” and “n2”.
• Define the “multiplyRecursive()” function:
  • Check the value of “x” and “y”
    • If it is equal to “0”, then return “0”.
    • Otherwise, call the function “multiplyRecursive()” to recursively perform the addition operation.
• Call the “main()” function.