View Code of Problem 24

#include<stdio.h>
#include<math.h>
int main()
{
    float a,b,c;
    float p,S;
   while ((scanf("%f%f%f",&a,&b,&c))!=EOF)
   {

    if(a+b>c&&a+c>b&&b+c>a)
    {

    p=(a+b+c)/2;
    S=sqrt(p*(p-a)*(p-b)*(p-c));
    printf("%.2f\n",S);
    }
    else return 0;
   }

}