View Code of Problem 24

#include<stdio.h>
#include<math.h>
int main(){
	int a,b,c;
	double p=0.0;
	double s=0.0;
	scanf("%d %d %d",&a,&b,&c);
	p=(a+b+c)/2.0;
	s=sqrt(p*(p-a)*(p-b)*(p-c));
	printf("%.2f",s);
	printf("\n");
	return 0;	
}