View Code of Problem 24

#include "stdio.h"
#include "math.h"
void main()
{	
	int a,b,c;
	double p;
	for(;scanf("%d%d%d",&a,&b,&c)!=EOF;)
	{
		p=(a+b+c)/2.00;
		printf("%.2lf\n",sqrt(p*(p-a)*(p-b)*(p-c)));
	}	
}