求解决c语言error C2059: syntax error : ']'

#include
int main ()
{int x,y,i,sum=13,z[]={31,28,31,30,31,30,31,31,30,31,30,31};
printf(“please input x,y”);
scanf("%d,%d",&x,&y);
if(x%40)
z[i]=29;
for(i=0;i<11;i++)
{
if((sum%7+y6)||(sum%7+y==13))
{
printf("%d/%d\n",x,i+1);
sum+=z[] }
}
sum=z[i];
return 0;
}
cpp(13) : error C2059: syntax error : ‘]’
c2059错误怎么解决?