题解 | #输入整型数组和排序标识,对其元素进行排序#
输入整型数组和排序标识,对其元素按照升序或降序进行排序
https://www.nowcoder.com/practice/dd0c6b26c9e541f5b935047ff4156309
import java.util.*; // 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) { Scanner in = new Scanner(System.in); while (in.hasNextLine()) { String num = in.nextLine(); String arr = in.nextLine(); final String rule = in.nextLine(); String[] arrs = arr.split(" "); List<Integer> a = new ArrayList<>(); for (String s : arrs) { a.add(Integer.valueOf(s)); } //System.out.println(a); Collections.sort(a, new Comparator<Integer>() { @Override public int compare(Integer o1, Integer o2) { if ("0".equals(rule))return o1 - o2; return o2 - o1; } }); System.out.println(a.toString().replaceAll(", ", " ").replace("[", "").replace("]", "")); } } }