大佬们帮看一下  20% 纯暴力

public class Demo3 {

    public static void main(String[] args) {
        int[] arr = { 3, 2, 4 };
        System.out.println(fun(arr));
    }

    private static int fun(int[] arr) {
        int min = Integer.MAX_VALUE;
        for (int k = 0; k < arr.length; k++) {
            int sum = 0;
            int i = k - 1;
            int j = k + 1;
            while (i >= 0 && j < arr.length) {
                if (arr[i] == arr[j]) {
                    j++;
                    i--;
                } else if (arr[i] > arr[j]) {
                    sum += arr[j++];
                } else {
                    sum += arr[i--];
                }
            }
            if (i < 0) {
                for (int j2 = j; j2 < arr.length; j2++) {
                    sum += arr[j2];
                }
            }
            if (j == arr.length) {
                for (int j2 = i; j2 >= 0; j2--) {
                    sum += arr[j2];
                }
            }

            min = Math.min(min, sum);
        }

        for (int k = 0; k < arr.length; k++) {
            min += arr[k];
        }

        return min;
    }
}