Question

The players alternate turns. In each turn, the current player must remove a non-zero number of elements from the sequence; each removed element should be a multiple of the lucky number of this player.

Answer 1

https://goo.gl/search/The+player+alternate+turn

Tutorial for A Coin Game | CodeChef An impartial game is a two-player game where the players alternate making moves. The moves available to a player at any given time must be independent of whose turn it is. Players will alternate taking moves until they reach a terminal position, where one of the players is declared the winner.