Python Programs Written and Practiced by : Jiya Kiyam

menu given program

i) largest of three numbers ii) sum of digits of a number iii) reverse of a number w/o built in functions

menu_given_program1.py

Back to Program List

Program Output

Options : 
1. Largest of three numbers. 
2. Sum of digits of a number 
3. Reverse of a number 
Select choice :

"""
Program Name: menu given program
Description: i) largest of three numbers ii) sum of digits of a number iii) reverse of a number w/o built in functions
"""

option = input("Options : \n1. Largest of three numbers. \n2. Sum of digits of a number \n3. Reverse of a number \nSelect choice : ")
if option == "1" :
    numbers = input("Enter three numbers with space :").split()
    if len(numbers) != 3 :
        print("Only 3 numbers are valid")
    else :
        x = []
        i = 0
        while i < len(numbers) :
            x.append(int(numbers[i]))
            i +=1
        big = int(x[0])
        for a in x :
            if a > big :
                big = a
        print(f"{big} is the largest number of the three")
elif option == "2" :
    number = input("Enter a number :")
    if number.isdigit() :
        number = int(number)
        s = 0
        while number != 0 :
            n = number % 10
            s += n
            number //= 10
        print(f"Sum : {s}")
    else :
        print("Enter only one number.")
elif option == "3" :
    number = input("Enter a number :")
    if number.isdigit() :
        number = int(number)
        rev = 0
        while number != 0 :
            r = number % 10
            rev = rev * 10 + r
            number //= 10
        print(f"Reverse : {rev}")
    else :
        print("Enter only one number.")
else : 
    print("Invalid choice")