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fahad lashari
7,693 PointsJust need help with the last step
So I managed to solve the rest of the question however I am not sure as to exactly what is required to pass the last question.
the solution I came up with gives you exactly [5, 3, 1] if you have a list of numbers 1-5
Please do let me know
kind regards,
Fahad
def first_4(string):
return string[:4]
def first_and_last_4(string):
return string[:4] + string[-4::1]
def odds(string):
return string[1::2]
def reverse_evens(string):
return string[-1::-2]
1 Answer
Steven Parker
231,236 PointsThere are a couple of different approaches to solving this.
Since you don't know how long the string will be, you can't assume which item will be the last with an even numbered index. Your code appears to work when the list has an odd number of items, but try it with a list with an even number.
So you have two choices:
- you can compute the last even-indexed item using the length, and use that as the starting position
- or you can use one slice to get only the even-indexed items, and another slice to reverse the list
Either way can pass the challenge, but the latter approach is likely to be the easiest.