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推廣網站開發,包含 Laravel 和 Kotlin 後端撰寫、自動化測試、讀書心得等。Taiwan Kotlin User Group 管理員。

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Problem 37


This problem was asked by Google.

The power set of a set is the set of all its subsets. Write a function that, given a set, generates its power set.

For example, given the set

{1, 2, 3}

it should return

You may also use a list or array to represent a set.