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README.md

题目

Given an integer array of size n, find all elements that appear more than ⌊ n/3 ⌋ times.

Note: The algorithm should run in linear time and in O(1) space.

Example 1:

Input: [3,2,3]
Output: [3]

Example 2:

Input: [1,1,1,3,3,2,2,2]
Output: [1,2]

题目大意

给定一个大小为 n 的数组,找出其中所有出现超过 ⌊ n/3 ⌋ 次的元素。说明: 要求算法的时间复杂度为 O(n),空间复杂度为 O(1)。

解题思路