原题：
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 integerThe web page's width and length you designed must be positive integers。 原题的意思就是找两个最相近的乘机等于area的数而已。 int* constructRectangle(int area, int* returnSize) { int* result; result = (int*)malloc(sizeof(int)*2); *returnSize=2; double sq = sqrt(area); for(int n=(int)sq;n>0;n--) { if(((float)area/n-(int)area/n)==0) { *result=(int)area/n; *(result+1)=n; return result; } } return result; } 这个还是比较简单那的。