[مهمان]

این چیزیه که من نوشتم:

کد :

struct tree {
  char info;
  struct tree *left;
  struct tree *right;
};

tree * getnode(){
    tree *node;
    node=(tree *)malloc(sizeof(struct tree));
    node->left=NULL;
    node->right=NULL;
    return node;
}

tree * add_node(tree *y,int i){
    tree *root=NULL;
    while (i!=0){

        if(y==NULL){

         y=getnode();
         root=y;
         i--;

        }

        else {

            add_node(y->right,i);
            add_node(y->left,i);

        }
    }

    return root;

}