摘要：
NN is an experienced internet user and that means he spends a lot of time on the social media. Once he found the following image on th... 阅读全文
posted @ 2019-01-14 23:11
black_hole6
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摘要：
Arkady coordinates rounds on some not really famous competitive programming platform. Each round features nn problems of distinct diff... 阅读全文
posted @ 2019-01-14 23:07
black_hole6
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摘要：
This morning, Roman woke up and opened the browser with nn opened tabs numbered from 11 to nn. There are two kinds of tabs: those with... 阅读全文
posted @ 2019-01-14 23:04
black_hole6
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