View Code of Problem 24

#include<stdio.h>
#include<math.h>
int main()
{
  float a,b,c,p,s,sum;
  while(scanf("%f %f %f",&a,&b,&c)!=EOF)
  {
	  p=1.0*(a+b+c)/2;
	  sum=p*(p-a)*(p-b)*(p-c);
	  s=sqrt(sum);
	  printf("%.2f\n",s);
  }
	return 0;
}

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