面试题——股票利益最大化

public class Demo {
    public static void main(String[] args) {

        int[] nums = {
            4, 5, 6, 9, 26, 39, 1, 
            18, 24, 21, 19, 33};

        int min = nums[0];
        int maxProfit = 0;

        for (int num : nums) {
            if (num < min) {
                min = num;
            }

            if (num - min > maxProfit) {
                maxProfit = num - min;
            }
        }

        System.out.println(
             "Max profit is: " + maxProfit);
    }
}