Question

PYTHON:

(Sum the digits in an integer using recursion)

Write a recursive function that computes the sum of the digits in an integer. Use the following function header:

def sumDigits(n):

For example, sumDigits(234) returns 9. Write a test program that prompts the user to enter an integer and displays the sum of its digits.

Sample Run

Enter an integer: 231498

The sum of digits in 231498 is 27

Answer 1

def sumDigits(num):
    if(num <= 9):
        return num
    else:
        return (num%10) + sumDigits(num//10)

def main():
    n = eval(input("Enter an integer: "))
    print("The sum of digits in",n,"is",sumDigits(n))

main()