//这个是最后几秒才想出来的,不够时间了,提交的复杂度太大 import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner in = new Scanner(System.in); int num = in.nextInt(); int[] arr1=new int[num]; int[] arr2=new int[num]; int count = 0; while (in.hasNextInt()) {//注意while处理多个case int b = in.nex...