2019年3月23日
【Codeforces1139D_CF1139D】Steps to One (Mobius_DP)
摘要： Problem: = "Codeforces 1139D" Analysis: = ~~After ACing E, I gave up D and spent the left 30 minutes chatting with Little Dino.~~ Let $f[n]$ be the ex 阅读全文
posted @ 2019-03-23 17:17 Inspector_Javert 阅读(760) 评论(0) 推荐(0) 编辑