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Alex is teaching a class on number properties and wants to create an exercise for his students. He needs a program that takes a three-digit number as input, calculates the sum of its digits, and determines whether the sum is even or odd.

Question

Alex is teaching a class on number properties and wants to create an exercise for his students. He needs a program that takes a three-digit number as input, calculates the sum of its digits, and determines whether the sum is even or odd.

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Solution

Sure, here is a step-by-step guide to create such a program:

  1. First, you need to create a function that takes a three-digit number as input. You can do this using the input() function.

  2. Next, you need to calculate the sum of the digits. You can do this by converting the number to a string, iterating over each character in the string, converting each character back to an integer, and adding them all together.

  3. After you have the sum of the digits, you need to determine whether the sum is even or odd. You can do this using the modulus operator (%). If the sum modulo 2 is 0, then the sum is even. Otherwise, it's odd.

  4. Finally, you need to print out whether the sum is even or odd. You can do this using the print() function.

Here is a sample code that implements these steps:

# Step 1: Get the input
number = input("Enter a three-digit number: ")

# Step 2: Calculate the sum of the digits
digit_sum = sum(int(digit) for digit in str(number))

# Step 3: Determine whether the sum is even or odd
if digit_sum % 2 == 0:
    result = "even"
else:
    result = "odd"

# Step 4: Print the result
print("The sum of the digits is", result)

This program will take a three-digit number as input, calculate the sum of its digits, and print whether the sum is even or odd.

This problem has been solved

Similar Questions

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Prompt Olivia to input an integer n, calculate, and display the sum of the last two digits.

How many 3-digit positive integers exist whose digits add up to give an even number

(This is from Programming Exercise P4.1 at the end of Chapter 4 of Java for Everyone.) Write program fragments (i.e., you do not need to write complete programs) with loops that compute:The sum of all even numbers between 2 and 100 (inclusive).The sum of all squares between 1 and 100 (inclusive).All powers of 2 from 20 up to 220 (inclusive).The sum of all odd numbers between a and b (inclusive), where a and b are integer variables with a ≤ b.The sum of all digits at odd positions (right-to-left starting at 1 as the right-most digit) of a numeric input. (For example, if the input is 432677, the sum would be 7 + 6 + 3 = 16.)The sum of all digits at odd positions (left-to-right starting at 1 as the left-most digit) of a numeric input. (For example, if the input is 432677, the sum would be 4 + 2 + 7 = 13.)

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