View Code of Problem 24

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