123456789101112131415161718
import { TreeNode } from "../binary-tree-inorder-traversal/TreeNode.ts";import { inorder } from "./inorder.ts";import { merge_sort } from "./merge_sort.ts";
export default function getAllElements(    root1: TreeNode | null,    root2: TreeNode | null,): number[] {    const nums1: number[] = [];    const nums2: number[] = [];
    inorder(root1, nums1);    inorder(root2, nums2);
    const merged = merge_sort(nums1, nums2);    return merged;}