View Code of Problem 24

#include <stdio.h>
#include <math.h> 
int main (){
	double a,b,c,p,S;
	while(scanf("%lf %lf %lf",&a,&b,&c)!=EOF){
	p=(a+b+c)/2.0;
	S=sqrt(p*(p-a)*(p-b)*(p-c));
	printf("%0.2lf",S);
	}
}