#include<stdio.h>

#define s(a,b,c)(1/2*(a+b+c))
#define area(s,a,b,c)(sqrt(s*(s-a)*(s-b)*(s-c))

int sqrt(int x)
{int z;
z=x*x;
return z;

main(){scanf("%d%d%d",&a,&b,&c);
printf("%d,%d",area,s);
}
哪里错了请指出谢谢了