シーソー (Seesaw)
Unrated
日本語
Language
Contribute a translation- Time limit
- 10000 ms
- Memory limit
- 512 MB
- Submissions
- 0
- Correct
- 0
- Solved by
- 0
- AC rate
- —
Statement
Examples
Sample input 1
3 1 2 4
Sample output 1
0.8333333333
Sample input 2
6 1 2 5 6 8 9
Sample output 2
1.166666667
Notes
JOI Open Contest 2022 · JCIOI · CC BY-SA 4.0
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