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Ryan White
33,388 PointsI don't understand. This answer works in workspaces.
I tried this way:
def reverse_evens(list): return list[::-2]
and
def reverse_evens(list): return list[-1::-2]
def first_4(list):
return list[0:4]
def first_and_last_4(list):
return list[0:4] + list[-4:]
def odds(list):
return list[1::2]
def reverse_evens(list):
return list[::-2]
1 Answer
Chris Howell
Python Web Development Techdegree Graduate 49,702 PointsThis actually had me stumped to but you really have to read into it and consider other sides of the lists going into it.
# Example 1
numbers1 = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
# indices = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9] - numbers1 index list
# even_indices = [0,2,4,6,8] which reversed is -> [8,6,4,2,0]
# expected_output = [9, 7, 5, 3, 1]
def reverse_evens(list):
return list[::-2]
reverse_evens(numbers1) # returns [10, 8, 6, 4, 2]
So is that the right return? Nope. I mean it is "ever other index" but its the wrong items.
HINT You want the even index items first, then you want them in reversed order.
Ryan White
33,388 PointsRyan White
33,388 PointsHaha.. yea I figured it out like 10 minutes after posting it. I probably should read directions more. thanks!
Chris Howell
Python Web Development Techdegree Graduate 49,702 PointsChris Howell
Python Web Development Techdegree Graduate 49,702 PointsDont worry about it, this one got me too.