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)!=EOF)
	{
		double p=(a+b+c)/2;
	    printf("%.2lf\n",sqrt(p*(p-a)*(p-b)*(p-c)));
	}
}