灵异背包？

实现代码：

 public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int[] a = new int[n];
        int sum = 0;
        int minOdd = Integer.MAX_VALUE;

        for (int i = 0; i < n; i++) {
            a[i] = sc.nextInt();
            sum += a[i];
            if (a[i] % 2 == 1 && a[i] < minOdd) {
                minOdd = a[i];
            }
        }

        if (sum % 2 == 0) {
            System.out.println(sum);
        } else {
            System.out.println(sum - minOdd);
        }
    }