程序填空题：RR Rotation

The function `RR_Rotation` is to do right-right rotation to the trouble-finder tree node `T` in an AVL tree.

```c++
typedef struct TNode *Tree;
struct TNode {
int key, h;
Tree left, right;
};

Tree RR_Rotation( Tree T )
{
Tree L;

R = T->right;
T->right = R->left;
@@[R->left = T](2);
/* Update heights */
T->h = maxh(Height(T->left), Height(T->right)) + 1;
R->h = @@[maxh(Height(R->right), T->h)](2) + 1;

return L;
}
```





答案：
第1空：R->left = T

第2空：maxh(Height(R->right), T->h)