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;     } }