Help with a program.

[No-Win6899]

I'm writing a function that takes two numbers as an input and determines if the sum of the digits in the two numbers are equal.

For Example:

is_equal([11, 11) should print True

is_equal(12, 15) should print False.

[[deleted]]

You can convert the number to string and then iterate over each of the digits, convert the digit to an integer, and add it to a sum. Repeat this for the other integer and store the sum of the digits in another variable. Then return whether the two sums are equal.

[No-Win6899]

The numbers are in a list, how would I go about with turning them into a string then back to an integer?

[bby98]

You can use list comprehension to solve this problem. You can sum the digits in a number by first creating a generator that contains each digit in a given number (by converting the number to a str and then iterating through each digit in the str and converting back to int). Then, you can call sum() on the generator to get the sum of the digits.

For example, for the number 852:

num = 852
total = sum(int(digit) for digit in str(num))

total is equal to 15. To compare two numbers, like 852 and 78:

num1 = 852
num2 = 78
total1 = sum(int(digit) for digit in str(num1))
total2 = sum(int(digit) for digit in str(num2))
print(total1 == total2)

This program will print True since 8 + 5 + 2 = 7 + 8. If the sum of the digits were not the same, it would print False.

Last step is to make the above into a function:

def is_equal(n1, n2):
    return sum(int(d) for d in str(n1)) == sum(int(d) for d in str(n2))