Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
277 views
in Technique[技术] by (71.8m points)

python - Set of all subsets

In Python2 I could use

def subsets(mySet):
    return reduce(lambda z, x: z + [y + [x] for y in z], mySet, [[]])

to find all subsets of mySet. Python 3 has removed reduce.

What would be an equally concise rewrite of this for Python3?

See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Reply

0 votes
by (71.8m points)

Here's a list of several possible implementations of the power set (the set of all subsets) algorithm in Python. Some are recursive, some are iterative, some of them don't use reduce. Plenty of options to choose from!


与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
OGeek|极客中国-欢迎来到极客的世界,一个免费开放的程序员编程交流平台!开放,进步,分享!让技术改变生活,让极客改变未来! Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...