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Exercise12.py
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Exercise12.py
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# Coding challenge #12a
# Create a function that receives an array of numbers and returns an array containing only the positive numbers.
# Requirement: Use a “for” loop
def positive_numbers(numbers):
positive = []
for i in numbers:
if i >= 0:
positive.append(i)
return positive
array = [-5, 10, -3, 12, -9, 5, 90, 0, 1]
print(positive_numbers(array))
# Coding challenge #12b
# Create a function that receives an array of numbers and returns an array containing only the negative numbers.
# Requirement: Use a “for” loop
def negative_numbers(numbers):
negative = []
for i in numbers:
if i < 0:
negative.append(i)
return negative
array = [-5, 10, -3, 12, -9, 5, 90, 0, 1]
print(negative_numbers(array))
# Coding challenge #12c
# Create a function that receives an array of numbers and returns an array containing only the positive numbers.
# Requirement: Use .filter() array method
def filtered_numbers(numbers):
positive = filter(lambda i: i >= 0, numbers)
return positive
array = [-5, 10, -3, 12, -9, 5, 90, 0, 1]
print(list(filtered_numbers(array)))