Function rightRotate

Trees/avltree.c:41–53

Right rotate

// Right rotate
struct Node *rightRotate(struct Node *y)
{
  struct Node *x = y->left;
  struct Node *T2 = x->right;

  x->right = y;
  y->left = T2;

  y->height = max(height(y->left), height(y->right)) + 1;
  x->height = max(height(x->left), height(x->right)) + 1;

  return x;
}

// Left rotate
struct Node *leftRotate(struct Node *x)