Questions with My Top-Down Definition Pattern Same Tree Estimated reading: 1 minute 29 views public boolean isSameTree(TreeNode p, TreeNode q) { if (p == null && q == null) { return true; } if (p == null || q == null || p.val != q.val) { return false; } return isSameTree(p.left, q.left) && isSameTree(p.right, q.right); }