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Vladyslav Koroviakovskyi
5,049 Pointscant get the elements with odd index from a list
def first_4(x): return x[:4]
def first_and_last_4(x): return x[:4] + x[-4:]
def odds(x): list_1 = [] for item in x: if x.index(item) == 1 or x.index(item) % 3 == 0: list_1.append(item) return list_1
do not understand what is wrong with a code. it just says: "did not ge thte right values as an error"
def first_4(x):
return x[:4]
def first_and_last_4(x):
return x[:4] + x[-4:]
def odds(x):
list_1 = []
for item in x:
if x.index(item) == 1 or x.index(item) % 3 == 0:
list_1.append(item)
return list_1
1 Answer
Steven Parker
231,269 PointsYea, those "Bummer" messages don't always give a useful clue. But the best hint I can give is that this can be done with a single slice.
Just think about how you might use the slice parameters of start, stop and step. If you set them right, the slice will give you only every other value starting with the first odd numbered index.
Bonus hint: when you get to #4, one way to solve it involves two slices.
