Mathematic minimal surface is a surface of minimalarea under prescribed boundary condition.
数学上，最小曲面指的是（在给定边界条件下的）面积最小曲面。
2
The pressure index of cultivated land is the ratio of per capita minimalarea of cultivated land and per capita actual area of cultivated land.
耕地压力指数是指最小人均耕地面积与实际人均耕地面积之比。
3
You are to write a program to find a circle which covers a set of points and has the minimalarea. There will be no more than 100 points in one problem.