function maxProfit(k: number, prices: number[]): number {
    if (prices == null || prices.length < 2 || k == 0) {
        return 0;
    }

    const dp: number[][] = Array.from(
        Array(prices.length),
        () => Array(2 * k + 1).fill(0),
    );

    for (let j = 1; j < 2 * k; j += 2) {
        dp[0][j] = 0 - prices[0];
    }

    for (let i = 1; i < prices.length; i++) {
        for (let j = 0; j < 2 * k; j += 2) {
            dp[i][j + 1] = Math.max(dp[i - 1][j + 1], dp[i - 1][j] - prices[i]);
            dp[i][j + 2] = Math.max(
                dp[i - 1][j + 2],
                dp[i - 1][j + 1] + prices[i],
            );
        }
    }

    return dp[prices.length - 1][2 * k];
}
export default maxProfit;