yjjr's blog

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Codeforces868c qualification rounds

标签：位运算 Snark and Philip are preparing theproblemset for the upcoming pre-qualification rou...

Posted by yjjr's blog on February 6, 2018

Codeforces868b race against time

标签：模拟，平面几何 Have you ever tried to explain to thecoordinator, why it is eight hours to the co...

Posted by yjjr's blog on February 6, 2018

Codeforces868a bark to unlock

标签：模拟 As technologies develop, manufacturers aremaking the process of unlocking a phone as u...

Posted by yjjr's blog on February 6, 2018

Codeforces858d polycarp's phone book

标签：模拟，hash There are n phone numbers in Polycarp's contacts on his phone. Ea...

Posted by yjjr's blog on February 6, 2018

Codeforces858c did you mean

标签：贪心 Beroffice text editor has a wide range offeatures that help working with text. One of ...

Posted by yjjr's blog on February 6, 2018

Codeforces858b which floor

标签：模拟 In a building where Polycarp lives thereare equal number of flats on each fl...

Posted by yjjr's blog on February 6, 2018

Codeforces858a k Rouding

标签：模拟 For a given positive integer n denote its k-rounding as the minimum pos...

Posted by yjjr's blog on February 6, 2018

Codeforces849d rooter's song

标签：模拟 Wherever the destination is, whoever wemeet, let's render this song together. On a ...

Posted by yjjr's blog on February 6, 2018

Codeforces849c from y to y

标签：模拟 From beginning till end, this message hasbeen waiting to be conveyed. For a given u...

Posted by yjjr's blog on February 6, 2018

Codeforces849b tell your world

标签：模拟，计算几何 Connect the countless points with lines,till we reach the faraway yonder. Ther...

Posted by yjjr's blog on February 6, 2018

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