Function to Perform PUSH operation

//max=Maximum size of Stack
//initially, top= -1
void push()
{
 int item;
 if(top==(max-1))
 printf("\n Stack is full \n");
 else
 {
 printf("\n enter the item \n");
 scanf("%d",&item);

 top=top+1;
 stack[top]=item;
 printf("\n the pushed item is %d",stack[top]);
 }
}