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jojonki/return_indices_by_value.py

Last active November 14, 2017 22:07
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return indices by value
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return_indices_by_value.py
# https://stackoverflow.com/questions/7851077/how-to-return-index-of-a-sorted-list
s = [2, 3, 1, 4, 5]
sorted(range(len(s)), key=lambda k: s[k])
# [2, 0, 1, 3, 4]
sorted(range(len(s)), key=lambda k: s[k], reverse=True)
# [4, 3, 1, 0, 2]
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