leetcode_492. Construct the Rectangle ? 待解决

For a web developer, it is very important to know how to design a web page’s size. So, given a specific rectangular web page’s area, your job by now is to design a rectangular web page, whose length L and width W satisfy the following requirements:

1. The area of the rectangular web page you designed must equal to the given target area.

2. The width W should not be larger than the length L, which means L >= W.

3. The difference between length L and width W should be as small as possible.
   You need to output the length L and the width W of the web page you designed in sequence.
   Example:
   Input: 4
   Output: [2, 2]
   Explanation: The target area is 4, and all the possible ways to construct it are [1,4], [2,2], [4,1].
   But according to requirement 2, [1,4] is illegal; according to requirement 3, [4,1] is not optimal compared to [2,2]. So the length L is 2, and the width W is 2.
   Note:
   The given area won’t exceed 10,000,000 and is a positive integer
   The web page’s width and length you designed must be positive integers.

提示：提交代码后，需要用简洁的语言解释一下代码思路~ 谢谢

历史题目和总结见公众号「每日一道算法题」

https://leetcode.com/problems/construct-the-rectangle/description/

思路：