View Code of Problem 24

#include<stdio.h>
#include<math.h>
void main()
{
  int a,b,c;
  while(scanf("%d%d%d",&a,&b,&c)!=EOF)
  {
    float p,s;
    p=0.5*(a+b+c);
    s=sqrt(p*(p-a)*(p-b)*(p-c));
    printf("%.2f",s);
  }
}