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20 lines
471 B
Python
20 lines
471 B
Python
'''
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Python implementation of merge sort algorithm.
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Takes an average of 0.6 microseconds to sort a list of length 1000 items.
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Best Case Scenario : O(n)
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Worst Case Scenario : O(n)
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'''
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def merge_sort(LIST):
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start = []
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end = []
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while len(LIST) > 1:
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a = min(LIST)
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b = max(LIST)
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start.append(a)
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end.append(b)
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LIST.remove(a)
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LIST.remove(b)
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if LIST: start.append(LIST[0])
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end.reverse()
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return (start + end)
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