1 #include<stdio.h>
2 #include<stdlib.h>
3
4 struct b_node {
5
6 struct b_node *left_child;
7
8 struct b_node *right_child;
9
10 struct b_node *parent;
11
12 int value;
13 };
14
15 void build_node(struct b_node*,FILE *fp);
16
17 int main()
18 {
19
20 int flen = 0;/* the length of file */
21
22 int* fcontent = NULL;/* the content of the file */
23
24 int index = 0;
25
26 struct b_node head;
27
28 head.parent = NULL;
29
30 FILE *fp = fopen("data","rb");
31
32 fscanf(fp,"%d", &head.value);
33
34 build_node(&head,fp);
35
36 fclose(fp);
37
38 }
39
40 void build_node(struct b_node* current,FILE *fp)
41 {
42 int value = 0;/* value of read */
43 while(fscanf(fp,"%d", &value) != EOF)
44 {
45 current->left_child = (struct b_node *)malloc(sizeof(struct b_node));
46
47 current->left_child->value = value;
48
49 current->left_child->parent = current;
50
51 if(fscanf(fp,"%d",&value) != EOF)
52 {
53 current->right_child = (struct b_node *)malloc(sizeof(struct b_node));
54 current->right_child->value = value;
55
56 current->right_child->parent = current;
57 build_node(current->left_child,fp);
58
59 build_node(current->right_child,fp);
60 }
61 else
62 {
63 break;
64 }
65
66
67 }
68
69
70 }
