View Code of Problem 24

#include<stdio.h>
#include<math.h>
#define N 1000
main(){
	float a,b,c,d,s;
	while(scanf("%f %f %f",&a,&b,&c)!=EOF){
		d=(a+b+c)/2;
		s=sqrt(d*(d-a)*(d-b)*(d-c));
		printf("area=%.2f",s);
	}
}