View Code of Problem 24

#include<stdio.h>
#include<math.h>
main()
{
	int a,b,c;
	float m,s;
	while(scanf("%d %d %d",&a,&b,&c)!=EOF)
	{
		m=(a+b+c)/2.0;
		s=sqrt(m*(m-a)*(m-b)*(m-c));
		printf("%.2f\n",s);
	}
}