宣伝 (Advertisement)
Unrated
日本語
Language
Contribute a translation- Time limit
- 1000 ms
- Memory limit
- 64 MB
- Submissions
- 0
- Correct
- 0
- Solved by
- 0
- AC rate
- —
Statement
Examples
Sample input 1
5 5 1 2 2 3 3 1 3 4 5 4
Sample output 1
2
Notes
JOI 2008/2009 宣伝 (Advertisement) · JCIOI · CC BY-SA 4.0
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