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Start your free trialfahad lashari
7,693 PointsCombo Code challenge question
Hi,
I solved this challenge in two different ways. Both deliver the desired result. However I feel like this could be further improved and made more efficient. Please check out both of my solutions and advice me on what I can improve and what I must NEVER do.
kind regards,
Fahad
solution 1:
def combo(list1, list2):
list = []
for (item1, item2) in zip(list1, list2):
list.append((item1, item2))
return list
combo([1, 2, 3], 'abc')
solution 2:
def combo(list1, list2):
list = []
for value1, value2 in enumerate(list2):
list.append((value1+1, value2))
return list
combo([1, 2, 3], 'abc')
2 Answers
Steven Parker
231,172 Points"Solution 2" does not satisfy the challenge requirements.
It might appear to do the same thing when tested using these particular arguments, but it will not do the same thing with other arguments, and it will not pass the challenge. Try pasting it into the challenge yourself and see! Or test both versions using: combo('abc', [1, 2, 3])
or combo('test', 'this')
.
As far as what to "NEVER" do: Never assume a single test case is enough to verify the proper operation of a function.
gyorgyandorka
13,811 PointsThe key takeaway is in Steven's answer, but regarding your first soution (which is fine), you can also construct a list from the zip object with the built-in list()
method, so the whole function body will be just one line:
def combo(list1, list2):
return list(zip(list1, list2))
fahad lashari
7,693 Pointsooo nice! Very clever, thank you