• [F] Chihuo VI - Left Evidence

  • 时间限制: 1000 ms 内存限制: 65535 K
  • 问题描述
  • Although Tianyi has buried most of evidence, there's still some evidence left. It distributes scattered.
    Tianyi wants to find a big round paper to cover the evidence. In line with the principle of not wasting, Tianyi decide to make the paper as possible as small.

  • 输入
  • This problem contains several cases. Input until 0.
    The first line of each case is an integer N(0 < N < 500), indicates the number of evidence.
    Then N lines will be followed. Each line contains a coordinate x and y.
  • 输出
  • For each case, you should output the coordinate of the centre of the paper and it's minimum radius. All output numbers are rounded to the second digit after the decimal point.
  • 样例输入
  • 5
    140.410000 255.540000
    57.120000 309.480000
    211.690000 52.650000
    18.490000 308.090000
    73.650000 151.620000
    
  • 样例输出
  • 115.09 180.37 160.14
    
  • 提示
  • 来源
  • XadillaX
  • 操作

显示春菜