Question

Create a function to calculate and return the sum of all of the even numbers from 0 to the passed number (inclusive) using a while loop.

Answer 1

def sum_evens(n):

# Initialize a variable to keep track of the sum

sum = 0

# Initialize a variable to keep track of the current number

current = 0

# Loop until the current number is greater than the passed number

while current <= n:

# If the current number is even, add it to the sum

if current % 2 == 0:

sum += current

# Increment the current number

current += 1

# Return the sum

return sum