View Code of Problem 24

#include<stdio.h>
#include<math.h>
int main()
{
   double a,b,c;
   while(~scanf("%lf %lf %lf",&a,&b,&c))
   {
   	double s;
   	s=(a+b+c)/2;
   	double area=sqrt(s*(s-a)*(s-b)*(s-c));
   	printf("%.2f\n",area);
  }
}

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