摘要: 传送门 思路:“Dreamoon will choose a number pipi from range [1,n−li+1](inclusive) and will paint all cells from pipi to pi+li−1(inclusive) in ii-th color.”可 阅读全文
posted @ 2020-12-31 20:41 SummerMingQAQ 阅读(232) 评论(0) 推荐(0) 编辑