This problem has left me baffled, I couldn't come with a proof for the solution so I looked at the editorial. In its editorial I don't understand what this term "**area to Vika**" means, its definition is written with a really confusing language and I can't understand it(none of the three cases). If you could please help me understand what it means(perhaps through a picture or by just rewording it) I would be grateful. Thank you