// search search a key from tree.
search search a key from tree.
// search search a key from tree .
func (b *BST) search(key int) bool {
	result := recursiveSearch(b.Root, key)
	return result
}
func ( b * BST ) search ( key int ) bool { result := recursiveSearch ( b . Root , key ) return result }
search search a key from tree.
search search a key from tree .