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.
1 public class Solution { 2 public int[] constructRectangle(int area) { 3 int[] result = new int[2]; 4 if (area == 0) return result; 5 6 int length = (int) (Math.sqrt(area)) + 1; 7 while (area % length != 0) length--; 8 length = Math.max(length, area / length); 9 10 int width = area / length; 11 result[0] = length; 12 result[1] = width; 13 14 return result; 15 } 16 }