View Code of Problem 24

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