sorry for bad england I woke
Seen noftication
-is-this-fft- mention me
he call me stupi
how dare u?
dare u my frend
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Screenshot from ~9 years ago Codeforces Beta! http://funkyimg.com/i/2M6zq.png
Copyrights to my friend
I recently spotted this problem of IOI 2018. I couldn't come up with a proper approach. Only thing that I know is the solution is associated with graph. Can you please help me to solve this problem?
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