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  1. /連番が、順に 3 →  1 → 9 → 12 → 8 の場合。
  2.  
  3. //パターン1(前の番号と後の番号を記録するケース)
  4. --------------------------------------
  5. | number | prev_number | next_number |
  6. --------------------------------------
  7.     3         null            1
  8.     1          3              9
  9.     8          12            null
  10.     9          1              12
  11.     12         9              8
  12.  
  13.  
  14. //パターン2(後の番号のみを記録するケース)
  15. ------------------------
  16. | number | next_number |
  17. ------------------------
  18.     3          1
  19.     9          12
  20.     1          9
  21.     12         8
  22.     8         null
Compilation error #stdin compilation error #stdout 0s 0KB
comments (?)
stdin
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Standard input is empty
compilation info 
Main.java:1: error: class, interface, or enum expected
/?????? 3 ?  1 ? 9 ? 12 ? 8 ????
^
Main.java:1: error: illegal character: '\u3001'
/?????? 3 ?  1 ? 9 ? 12 ? 8 ????
    ^
Main.java:1: error: illegal character: '\u2192'
/?????? 3 ?  1 ? 9 ? 12 ? 8 ????
          ^
Main.java:1: error: illegal character: '\u2192'
/?????? 3 ?  1 ? 9 ? 12 ? 8 ????
               ^
Main.java:1: error: illegal character: '\u2192'
/?????? 3 ?  1 ? 9 ? 12 ? 8 ????
                   ^
Main.java:1: error: illegal character: '\u2192'
/?????? 3 ?  1 ? 9 ? 12 ? 8 ????
                        ^
Main.java:1: error: illegal character: '\u3002'
/?????? 3 ?  1 ? 9 ? 12 ? 8 ????
                               ^
7 errors
stdout
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Standard output is empty
https://ideone.com/oOlh4z
language:
Java (HotSpot 12)
created:
4 years ago
visibility:
public

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