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import { left_rotate } from "./left_rotate.ts";
export default function spiralOrder(matrix: number[][]): number[] {    if (!matrix.length || !matrix[0].length) {        return [];    }    const rows = matrix.length;    const columns = matrix[0].length;    if (rows === 1) {        return matrix[0];    }    if (columns === 1) {        return matrix.flat();    }    const [first, ...rest] = matrix;    return [...first, ...spiralOrder(left_rotate(rest))];}