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View Compilation Error

0_0_39254463_31121\Main.java:1: 错误: 需要class, interface或enum
  public static void main(String[] args) {
                ^
0_0_39254463_31121\Main.java:3: 错误: 需要class, interface或enum
        while (in.hasNext()){
        ^
0_0_39254463_31121\Main.java:5: 错误: 需要class, interface或enum
          int n=in.nextInt();
          ^
0_0_39254463_31121\Main.java:6: 错误: 需要class, interface或enum
          if(m==0 && n==0)break;
          ^
0_0_39254463_31121\Main.java:8: 错误: 需要class, interface或enum
          Set<Integer> set=new TreeSet<>();
          ^
0_0_39254463_31121\Main.java:9: 错误: 需要class, interface或enum
            for (int i = 0; i < m; i++) {
            ^
0_0_39254463_31121\Main.java:9: 错误: 需要class, interface或enum
            for (int i = 0; i < m; i++) {
                            ^
0_0_39254463_31121\Main.java:9: 错误: 需要class, interface或enum
            for (int i = 0; i < m; i++) {
                                   ^
0_0_39254463_31121\Main.java:11: 错误: 需要class, interface或enum
            }
            ^
0_0_39254463_31121\Main.java:13: 错误: 需要class, interface或enum
            for (int i = 0; i < n; i++) {
            ^
0_0_39254463_31121\Main.java:13: 错误: 需要class, interface或enum
            for (int i = 0; i < n; i++) {
                            ^
0_0_39254463_31121\Main.java:13: 错误: 需要class, interface或enum
            for (int i = 0; i < n; i++) {
                                   ^
0_0_39254463_31121\Main.java:15: 错误: 需要class, interface或enum
            }
            ^
0_0_39254463_31121\Main.java:17: 错误: 需要class, interface或enum
            for (int i = 0; i < nums.length; i++) {
                            ^
0_0_39254463_31121\Main.java:17: 错误: 需要class, interface或enum
            for (int i = 0; i < nums.length; i++) {
                                             ^
0_0_39254463_31121\Main.java:20: 错误: 需要class, interface或enum
            }
            ^
0_0_39254463_31121\Main.java:22: 错误: 需要class, interface或enum
            else {
            ^
0_0_39254463_31121\Main.java:25: 错误: 需要class, interface或enum
            }
            ^
0_0_39254463_31121\Main.java:27: 错误: 需要class, interface或enum
        }
        ^
19 个错误


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