2018年1月31日
codeforces 10C Digital Root（非原创）
摘要： Not long ago Billy came across such a problem, where there were given three natural numbers A, B and C from the range [1, N], and it was asked to chec 阅读全文
posted @ 2018-01-31 22:00 euzmin 阅读(253) 评论(0) 推荐(0) 编辑
codeforces 9D（非原创）
摘要： D. How many trees? time limit per test 1 second memory limit per test 64 megabytes input standard input output standard output D. How many trees? time 阅读全文
posted @ 2018-01-31 09:16 euzmin 阅读(181) 评论(0) 推荐(0) 编辑