#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