1575: president bai's sky
[Creator : ]
Description
president bai is counting stars.There are many stars on the map.Please help president bai find out the circular coordinates and radius of the circle covering all stars and it contains the shortest radius.
Input
Multi group coordinate input
Output
Circular coordinates and minimum radius and Results retain two decimal places.
Sample Input Copy
3
1.00 1.00
2.00 2.00
3.00 3.00
Sample Output Copy
2.00 2.00 1.41
HINT
You know president bai is very clever. Common questions she don't want to ask you.So this question is so difficult!