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Update e09b4_even_odd_sums.py #27

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Update e09b4_even_odd_sums.py #27

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19 changes: 6 additions & 13 deletions ch03-lists-tuples/e09b4_even_odd_sums.py
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Original file line number Diff line number Diff line change
Expand Up @@ -2,18 +2,11 @@
"""Solution to chapter 3, exercise 9, beyond 4: even_odd_sums"""


def even_odd_sums(numbers):
"""Takes a list of numbers, and returns a two-element
list containing the sum of the even elements and the
sum of the odd elements.
"""
evens = []
odds = []
# Write a function that takes a list or tuple of numbers. Return a two-element list,
# containing (respectively) the sum of the even-indexed numbers and the sum of
# the odd-indexed numbers. So calling the function as even_odd_sums([10, 20,
# 30, 40, 50, 60]), you’ll get back [90, 120].

for one_number in numbers:
if one_number % 2:
odds.append(one_number)
else:
evens.append(one_number)

return [sum(evens), sum(odds)]
def even_odd_sums(any_type):
return [sum(any_type[::2]),sum(any_type[1::2])]