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just solved c , a -1 was missing :((
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so close to solve c, wasted a lot of time on b, i dont know why :(
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ok,will try, thanks a lot
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i think penalies are the issue for you in this one, coz i also did 4 and got 4k
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can anyone suggest me how to prepare trees and graphs?, whenever tree or graph related question comes up i get anxious and my mind goes blank
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sure :)
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same happened with me :(