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Write a program to find the sum of all even numbers in a list of integers.

Steilla Mitchel 403 18 Jun 2023

Write a program to find the sum of all even numbers in a list of integers.

python pythonprograms
Updated 19 Jun 2023
Steilla Mitchel
Steilla Mitchel

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I completed my post-graduation in 2013 in the engineering field. Engineering is the application of science and math to solve problems. Engineers figure out how things work and find practical uses for scientific discoveries. Scientists and inventors often get the credit for innovations that advance the human condition, but it is engineers who are instrumental in making those innovations available to the world. I love pet animals such as dogs, cats, etc.

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1 Answers

Aryan Kumar
Aryan Kumar 19 Jun 2023
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Sure, here is a Python program to find the sum of all even numbers in a list of integers:

Python

def sum_of_even_numbers(numbers):
  """
  Finds the sum of all even numbers in a list of integers.

  Args:
    numbers: The list of integers to find the sum of even numbers in.

  Returns:
    The sum of all even numbers in the list.
  """

  sum_of_even_numbers = 0
  for number in numbers:
    if number % 2 == 0:
      sum_of_even_numbers += number

  return sum_of_even_numbers


if __name__ == "__main__":
  numbers = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
  sum_of_even_numbers = sum_of_even_numbers(numbers)
  print(sum_of_even_numbers)

This program works by first initializing a variable called sum_of_even_numbers to 0. Then, the program iterates through the numbers in the list and checks if the number is even. If the number is even, then the program adds the number to sum_of_even_numbers. Finally, the program returns sum_of_even_numbers.

To run the program, you can save it as a Python file and then run it from the command line. For example, if you save the program as sum_of_even_numbers.py, you can run it by typing the following command into the command line:

Code snippet

python sum_of_even_numbers.py

This will print the sum of all even numbers in the list to the console.

Here is an example of the output of the program:

Code snippet

$ python sum_of_even_numbers.py
30

As you can see, the output of the program is 30, which is the sum of all even numbers in the list [1, 2, 3, 4, 5, 6, 7, 8, 9, 10].

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