View Code of Problem 24

#include <stdio.h> 
#include <math.h>
int main()
{
	float a,b,c;
	float p;
	float d;
	while(scanf("%f%f%f",&a,&b,&c)!=EOF)
	{
	p = (a+b+c)/2; 
	d = sqrt(p*(p-a)*(p-b)*(p-c));
	printf("%.2f",d);
	return 0;
}
}