View Code of Problem 24

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