View Code of Problem 24

#include<stdio.h>
#include<math.h>
int main()
{
	int a,b,c;
	double s;
	double p;
	while(scanf("%d %d %d",&a,&b,&c)!=EOF)
	{
		p=(a+b+c)/2.0;
		s=sqrt(p*(p-a)*(p-b)*(p-c));
		printf("%.2f\n",s);
	}
	return 0;
}

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