The coding challenge from Codewars
I want to map each corresponding value in an array to my new defined dictionary such that
'NORTH': 1, 'SOUTH': -1, 'EAST': 1, 'WEST': -1
Here, each key corresponds to a an individual element in a given list
and the values in the dict
is what I want the new elements of said list
to equal to.
I then intend on taking the sum of the new list
to find the "reduced direction"
Any help would be appreciated. Thank you!
You can use map .
>>> src = ['NORTH','SOUTH','EAST','EAST']
>>> adict = {'NORTH': 1, 'SOUTH': -1, 'EAST': 1, 'WEST': -1}
>>> sum(map(adict.__getitem__,src))
2
>>>
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