This is an hard question and no one passed it in the contest. Can anyone tell me why this question is *2000? Or is it just a mistake?
This is an hard question and no one passed it in the contest. Can anyone tell me why this question is *2000? Or is it just a mistake?
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rainboy effect I'm guessing https://codeforces.me/blog/entry/126799
Yes, Galen mentioned that problem in his blog