View Code of Problem 24

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