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Discussion of Problem 1023. Buttons

teoy Be careful that L>=2 [2] // Problem 1023. Buttons 7 Oct 2011 08:24
I got a WA because I think L can be 1
Decoder Re: Be careful that L>=2 // Problem 1023. Buttons 25 Oct 2011 19:07
thnx man .. that should help
Drunken Statue Re: Be careful that L>=2 // Problem 1023. Buttons 14 May 2016 04:40
5 years later, same trap grabbing me :(