是否可以编写一个函数来返回二叉树的给定节点的父节点? BinaryTree *search_val(BinaryTree *bt, int val)
{
//temp pointer
BinaryTree* temp = NULL;
if(!bt->isEmpty())
{
//check if root is equal to value a
这两个版本之间有什么区别? public static int countLeaves(IntTreeNode root) {
if (root == null) {
return 0;
} else
return 1 + countLeaves(root.left) + countLeaves(root.right);
}
public stat