3711：Mayan Pyramid

题目描述

When a king dies, Mayan people build a pyramid as a monument. The pyramid is a tetrahedron. So the bottom of the pyramid is a triangle. One side of the triangle represents the year of the kings death, another represents the month, and the last represents the day. The height of the pyramid represents the king's age.

In the following picture, we see a Mayan pyramid. We have already known the coordinates of A, B and C. And we know the height of P. Q is the projection of P. Because of the Mayan religion, they want PD²+PE²+PF² to be as small as possible.

输入解释

The input consists of one or more test cases ended with EOF. Each line contains one test case. Each test case contains 7 non-negative float numbers meaning the coordinates of A, B, C and the height of P. All numbers are less than 1000.

输出解释

For each test case, output the coordinates of Q in a single line. Round all numbers to the second digit after the decimal point.

输入样例

0 0 2 0 1 1.73205 1

输出样例

1.00 0.58

该题目是Virtual Judge题目，来自北京大学POJ

题目来源 POJ Founder Monthly Contest – 2008.12.28, Panda

源链接： POJ-3711

最后修改于 2020-10-29T07:08:51+00:00 由爬虫自动更新

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通过率 --%

时间上限	内存上限
1000	65536