2018年11月26日
Stone Game
摘要： Alex and Lee play a game with piles of stones. There are an even number of piles arranged in a row, and each pile has a positive integer number of sto 阅读全文
posted @ 2018-11-26 05:20 Hygeia 阅读(137) 评论(0) 推荐(0) 编辑