Stock Buy and Sell – Max 2 Transactions Allowed

class Solution {
    public static int maxProfit(int[] prices) {
        int buy1 = Integer.MIN_VALUE, buy2 = Integer.MIN_VALUE;
        int sell1 = 0, sell2 = 0;

        for (int price : prices) {

            buy1 = Math.max(buy1, -price);
            sell1 = Math.max(sell1, buy1 + price);

            buy2 = Math.max(buy2, sell1 - price);
            sell2 = Math.max(sell2, buy2 + price);
        }

        return sell2;
    }
}