text: /**
   * Description: returns \{circumcenter,circumradius\}
   * Source: EGMO
   * Verification: see MEC
   */
  
  #include "Circle.h"
  
  Circ ccCenter(P a, P b, P c) { 
  	b -= a; c -= a;
  	P res = b*c*(conj(c)-conj(b))/(b*conj(c)-conj(b)*c);
  	return {a+res,abs(res)};
  }
  