2017年9月6日
Codeforeces Round #226 (Div. 2) E---Bear in the Field(矩阵快速幂)
摘要： Our bear's forest has a checkered field. The checkered field is an n × n table, the rows are numbered from 1 to n from top to bottom, ... 阅读全文
posted @ 2017-09-06 16:39 Sizaif 阅读(162) 评论(0) 推荐(0) 编辑