题目来自https://oj.leetcode.com/problems/majority-element/。
分析部分摘抄自《线性时间查找固定频率的元素》，有改写。
题目
Given an array of size n, find the majority element. The m[……]
Maximum Gap
来自https://oj.leetcode.com/problems/maximum-gap/。
题目
Given an unsorted array, find the maximum difference between the successive elements in its sort[……]