BALKAN-SL 2020 N2
A number of children are at a party and they sit in a circle to play a game of Pass and Parcel. Because the host has no other form of entertainment, the parcel has infinitely many layers. On turn , starting with , the following two things happen in order: The parcel is passed positions clockwise; and**** The child currently holding the parcel unwraps a layer and claims the prize inside. For what values of will every chidren receive a prize?
Dataset text AI-MO AoPS. Quoted with source.
Solutions
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