Created
November 25, 2018 14:59
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flatten a list
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| def flatten(l): | |
| if len(l) == 0: | |
| return [] | |
| first = l[0] | |
| if type(first) is list: | |
| return flatten(first) + flatten(l[1:]) | |
| else: | |
| return [first] + flatten(l[1:]) |
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