VE280 SU2021 (Paul)
Powered by JOJ
/ VE280 SU2021 (Paul) /

Record Case Detail

Notes

This function is in beta test. Please help improve it in the issues here.

Stderr 


        

      

    

          

        

          

            

              Hints
            

          

          

            
Your answer may be identical to the JOJ answer in the first several lines.

                          
However, you will still get 
                Wrong Answer
                because the complete output may be longer and there might be errors in the future lines.

                        
Please double check your code to solve this problem and try again.

          

        

      

        

      

        

          

            
            Your Answer
          

        

        

          
0
1
3
4
2
5
6
2
5
11
12
6
13
14
0
1
3
4
2
5
6
0
1
3
4
2
5
6
0
1
3
4
2
5
6
nullptr
0
1
3
4
2
5
6
2
5
11
12
6
13
14
0
1
3
4
2
5
6
0
1
3
4
2
5
6
0
1
3
4
2
5
6
nullptr
0
1
3
4
2
5
6
2
5
11
12
6
13
14
0
1
3
4
2
5
6
0
1
3
4
2
5
6
0
1
3
4
2
5
6
nullptr
0
1
3
4
2
5
6
2
5
11
12
6
13
14
0
1
3
4
2
5
6
0
1
3
4
2
5
6
0
1
3
4
2
5
6
nullptr
0
1
3
4
2
5
6
2
5
11
12
6
13
14
0
1
3
4
2
5
6
0
1
3
4
2
5
6
0
1
3
4
2
5
6
nullptr
0
1
3
4
2
5
6
2
5
11
12
6
13
14
0
1
3
4
2
5
6
0
1
3
4
2
5
6
0
1
3
4
2
5
6
nullptr
0
1
3
4
2
5
6
2
5
11
12
6
13
14
0
1
3
4
2
5
6
0
1
3
4
2
5
6
0
1
3
4
2
5
6
nullptr
0
1
3
4
2
5
6
2
5
11
12
6
13
14
0
1
3
4
2
5
6
0
1
3
4
2
5
6
0
1
3
4
2
5
6
nullptr
0
1
3
4
2
5
6
2
5
11
12
6
13
14
0
1
3
4
2
5
6
0
1
3
4
2
5
6
0
1
3
4
2
5
6
nullptr
0
1
3
4
2
5
6
2
5
11
12
6
13
14
0
1
3
4
2
5
6
0
1
3
4
2
5
6
0
1
3
4
2
5
6
nullptr


        

      

    

    

      

        

          

            
            JOJ Answer
          

        

        

          
12
25
51
52
26
53
54
26
53
107
108
54
109
110
12
25
51
52
26
53
54
5
11
23
24
12
25
26
6
13
27
28
14
29
30
nullptr
12
25
51
52
26
53
54
26
53
107
108
54
109
110
12
25
51
52
26
53
54
5
11
23
24
12
25
26
6
13
27
28
14
29
30
nullptr
12
25
51
52
26
53
54
26
53
107
108
54
109
110
12
25
51
52
26
53
54
5
11
23
24
12
25
26
6
13
27
28
14
29
30
nullptr
12
25
51
52
26
53
54
26
53
107
108
54
109
110
11
23
47
48
24
49
50
5
11
23
24
12
25
26
6
13
27
28
14
29
30
nullptr
12
25
51
52
26
53
54
26
53
107
108
54
109
110
12
25
51
52
26
53
54
5
11
23
24
12
25
26
6
13
27
28
14
29
30
nullptr
12
25
51
52
26
53
54
26
53
107
108
54
109
110
8
17
35
36
18
37
38
5
11
23
24
12
25
26
3
7
nullptr
16
8
17
18
nullptr
12
25
51
52
26
53
54
26
53
107
108
54
109
110
12
25
51
52
26
53
54
5
11
23
24
12
25
26
6
13
27
28
14
29
30
nullptr
12
25
51
52
26
53
54
26
53
107
108
54
109
110
11
23
47
48
24
49
50
5
11
23
24
12
25
26
6
13
27
28
14
29
30
nullptr
12
25
51
52
26
53
54
26
53
107
108
54
109
110
14
29
59
60
30
61
62
5
11
23
24
12
25
26
3
7
nullptr
16


        

      

    

  

  
  
  

  

  

      

      

        
    
          
  1. 
             Language 
            
          
    2. 
        

      

      

        
    
                  
  1. © 2018 - 2022 Joint Online Judge
    2. 
                  
  2. FA2020-27-gec154be
    3. 
                  
  3. 沪交ICP备20190085号
    4.