题解 | #数组倒转#

import java.util.Arrays;
import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        int[] arr = new int[6];
        Scanner scanner = new Scanner(System.in);
        for (int i = 0; i < arr.length; i++) {
            arr[i] = scanner.nextInt();
        }
        System.out.println(Arrays.toString(arr));

        //write your code here......
        for (int l = 0, r = arr.length-1;l <= r; l ++, r--){
            arr[l] = arr[l] + arr[r] - (arr[r] = arr[l]);
        }
        

        System.out.println(Arrays.toString(arr));
    }
}