Introduction - If you have any usage issues, please Google them yourself
#include "stdio.h"
#include"stdlib.h"
#define MAXSIZE 20
typedef int datatype
typedef struct Node
{
datatype data
struct Node*lchild
struct Node*rchild
}Btnode,*Btree
typedef struct
{
Btnode*s[MAXSIZE]
int top
}sqstack