#include<stdio.h>
void main()
{
int max(int x,int y);
int a ,b ,c;
scanf("%d%d",a,b);
c = max(a,b);
printf("max = %d\n",c);
  getch();

}
int max(int x, int y);
{
 intz;
 if(x>y) z=x;
 else z = y;
 return(z);
    getch();
}


帮忙找一下错误