(UPD: 2024-12-04 14:48 UTC) Judge is not working due to Cloudflare incident. (URL) We can do nothing about it, sorry. After the incident is resolved, we will grade all submissions.

View problem - Labels (NOI20_labels)

Time limitMemory limit# of submissions# of submitted usersSolved #Accepted user ratio
1000 ms1024 MiB34715013791.33%
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