View Code of Problem 24

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