2021年8月5日
SCU4441 Necklace
摘要： Necklace frog has \(n\) gems arranged in a cycle, whose beautifulness are \(a_1,a_2,...,a_n\). She would like to remove some gems to make them into a 阅读全文
posted @ 2021-08-05 23:01 Chasing-Dreams 阅读(41) 评论(0) 推荐(0)