View Code of Problem 24

#include <stdio.h>
#include <math.h>
 void main()
{
    float a,b,c,s,area;
    while(scanf("%f%f%f",&a,&b,&c)!=EOF){
    s=1.0/2*(a+b+c);
    area=sqrt(s*(s-a)*(s-b)*(s-c));
    printf("%.2f\n",area);
    }
}