1026 : Perimeter of Rectangles

时间限制Time Limit 1 Sec 内存限制Memory Limit 128 MB 提交次数Submitted 33 Times 通过次数Solved 14 Times 标准评测Standard Judge

题目描述Description

Given three points of a rectangle, calculate the perimeter of it.

输入格式Input

There are multiple test cases.

In each case, three integer coordinates are given to describe the rectangle, i.e. (x1, y1), (x2, y2), (x3, y3).

0 <= x1, y1, x2, y2, x3, y3 <= 10000.

输出格式Output

Output the perimeter of the rectangle corresponding to each test case.

The result should be accurated to three decimal places.

样例Sample

出题Author

CSGrandeur