James Pan

原题网址：https://leetcode.com/problems/majority-element/ Given an array of size n, find the majority element. The majority element is the element that appears more than ⌊ n/2 ⌋ times. You may as

原题网址：https://leetcode.com/problems/find-the-duplicate-number/ Given an array nums containing n + 1 integers where each integer is between 1 and n (inclusive), prove that at least one duplicate nu