2020年4月17日
CF55D Beautiful numbers 数位DP
摘要： 传送门 题目描述 Volodya is an odd boy and his taste is strange as well. It seems to him that a positive integer number is beautiful if and only if it is divi 阅读全文
posted @ 2020-04-17 11:18 liuchanglc 阅读(303) 评论(0) 推荐(2) 编辑