灰鲭鲨

摘要： The game is played by Alice and Bob. Initially, there are $n$ stones. The players alternate turns, making a move described below, with Alice going fir 阅读全文

摘要： Problem StatementConstruct a set $S$ of integers satisfying all of the conditions below. It can be proved that at least one such set $S$ exists under 阅读全文