七、错误票据

package com.markerhub;import java.util.Scanner;
import java.util.ArrayList;
import java.util.Collections;public class TEST {  //解题思路：枚举public static void main(String[] args) {Scanner sc = new Scanner(System.in);int N = sc.nextInt();sc.nextLine();  //吃掉整数后的换行符(不能用nextInt)ArrayList<Integer> list = new ArrayList<Integer>(); // 动态数组  不知道长度 集合装对象for(int i = 0; i < N; i++) {String line = sc.nextLine();String[] split = line.split(" ");//字符之间用空格进行分割for(int j = 0; j < split.length; j++) {list.add(Integer.parseInt(split[j])); // Integer 自动转换 基本类型的Int}}//System.out.println(list.size());Collections.sort(list);int brokenNumber = 0, repeatedNumber = 0;  // 断号、重号for(int i = 1 ; i < list.size(); i++) {if(list.get(i) - list.get(i-1) == 2) {brokenNumber = list.get(i) - 1;}// 或list.get(i) - list.get(i-1) == 0,用==得50分 注意此处有坑，不能用==// ==：地址；      对象：equals()     基本数据：比较内容if(list.get(i).equals(list.get(i-1))) {repeatedNumber = list.get(i);}}System.out.println(brokenNumber + " " + repeatedNumber);}}