2019年4月8日

Master of GCD(线段树or差分)

摘要: 题目描述Hakase has n numbers in a line. At fi rst, they are all equal to 1. Besides, Hakase is interested in p... 阅读全文

posted @ 2019-04-08 23:20 湫叶 阅读(119) 评论(0) 推荐(0) 编辑

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