Question

This phyton program requires you to accept from the user a three-digit integer (100-999), and prints the reverse of that integer.  You can assume that the input is an integer, but should not assume it's in the right range.  If it's not in the right range, print "Illegal input:" and the number.  Here are three sample runs:

Enter a three digit decimal integer: 234
The number in reverse is: 432

Enter a three digit decimal integer: 1345
Illegal input: 1345

Enter a three digit decimal integer: 555
The number in reverse is: 555

def printReverse():
   < your code goes here >

Answer 1

def printReverse(n):
    if n>=100 and n<=999:
        result = 0
        while (n > 0):
            result = result * 10
            result += (n % 10)
            n = n // 10
        print("The number in reverse is:",result)
    else:
        print("Illegal input:",n)


# Testing
n = int(input("Enter a three digit decimal integer: "))
printReverse(n)