int main(){
int i,count;
int number[MAXSIZE]={75,30,21,50,45,9,16,12,31,40};
TRnode *root = NULL;
printf("Sequence before Binary tree sort :\n");
for(i=0;i<MAXSIZE;i++){
if(i==(MAXSIZE-1)){printf("%d\n",number[i]);}
else{
printf("%d ->",number[i]);
}
}
for(i=0;i<MAXSIZE;i++){
root = Add_tree_node(root,number[i]);
}
printf("Sequence after Binary tree sort¡iInorder tracersal¡j :\n");
Inorder_traversal(root);
printf("[Delete all of tree node..]\n");
count = Delete_node(root,root);
printf("The number of deleted node is : %d\n",count);
system("pause");
return(0);
}
int main(int argc, const char *argv[])
{
DT *head ;
head = creak_link(10);
print_link(head);
head = Delete_node(head);
printf("\n");
print_link(head);
return 0;
}
//------Delete idea, use Postorder_traversal method,from bottom to top ,from left to right-------//
int Delete_node(TRnode *root,TRnode *parent_node){
int count = 0;
if(root == NULL){return 0;}
else{
//printf("count : %d\n",count);
count = count + Delete_node(root->left,root);
count = count + Delete_node(root->right,root);
printf("\tThis tree node %d wil be deleted \n",root->data);
if((parent_node->data) < (root->data)){
parent_node->right = NULL;
}
else{
parent_node->left = NULL;
}
free(root);
root = NULL;
count++;
}
return(count);
}