[leetcode]492. Construct the Rectangle

[leetcode]492. Construct the Rectangle

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Analysis

生而为人要善良啊~—— [ummmm~]

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.
给定矩形面积，找到满足条件1，2，3的长L和宽W。

Implement

class Solution {
public:
    vector<int> constructRectangle(int area) {
        vector<int> res;
        int t = sqrt(area);
        int w = t;
        int l = area/t;
        while(l*w != area){
            w--;
            l = area/w;
        }
        res.push_back(l);
        res.push_back(w);
        return res;
    }
};