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x/masx200_leetcode_test/binary-tree-level-order-traversal/index.ts

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import { TreeNode } from "../binary-tree-inorder-traversal/TreeNode.ts";import { level } from "../binary-tree-level-order-traversal-ii/level.ts";
export default function levelOrder(root: TreeNode | null): number[][] {    if (!root) return [];    const current: TreeNode[] = [root];    const result: number[][] = [];
    level(current, (r) => result.push(r));    return result;}