problem0090

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Published: Jul 25, 2019 License: MIT Imports: 1 Imported by: 0

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90. Subsets II

题目

Given a collection of integers that might contain duplicates, nums, return all possible subsets.

Note: The solution set must not contain duplicate subsets.

For example, If nums = [1,2,2], a solution is:

[ [2], [1], [1,2,2], [2,2], [1,2], [] ]

解题思路

观察题目输出结果的规律后,利用dfs解题

见程序注释

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