摘要：
Chiaki has an n × m matrix A. Rows are numbered from 1 to n from top to bottom and columns are numbered from 1 to m from left to right. The element in 阅读全文
posted @ 2018-08-27 22:25
Fitz~
阅读(251)
评论(0)
推荐(0)
摘要：
Chiaki has n intervals and the i-th of them is [li, ri]. She wants to delete some intervals so that there does not exist three intervals a, b and c su 阅读全文
posted @ 2018-08-27 21:15
Fitz~
阅读(289)
评论(0)
推荐(0)
浙公网安备 33010602011771号