import java.io.*; import java .util.Scanner; // 注意类名必须为 Main, 不要有任何 package xxx 信息 public class Main { public static void main(String[] args) { File file = new File("1.txt"); Scanner scanner = new Scanner(System.in); int n = scanner.nextInt(); int[] arrInt = new int[n]; long m = 0; for(int...