更新时间:2018-11-22 15:38作者:王新老师
..........
void func(int *p)
{...........}
..........
main()
{
int num=0;
.........
func(&num);
........
}
..........
here, the function argument “&num” is passed .
a. by value b. by reference
iii. practice
create a tree, which has h (h>0) layers, and its each node has w (w>0) sub-nodes.
please complete the following incomplete solution.
#include
#include
struct tree{
char info;
p_sub; //link to sub-nodes
};
// allocate memory and initiate
void dnode ( struct tree* tmp )
{
=malloc( sizeof (struct tree) );
= 0x41;
= null;
}
struct tree *dtree (struct tree* subtree, int height, int width)
{
int i;
if ( !subtree ) //if necessary, allocte memory for subtree
denode(subtree);