2020年7月22日
Codeforces Round #658 (Div. 2) Sequential Nim
摘要： There are nn piles of stones, where the ii -th pile has aiai stones. Two people play a game, where they take alternating turns removing stones. In a m 阅读全文
posted @ 2020-07-22 23:46 璃灵 阅读(109) 评论(0) 推荐(0)