Archive: 2019/9Total 231 articles 20192019-09-27 【2019 Multi-University 6 A】Salty Fish 题解 2019-09-26 【Petrozavodsk WC 2018d2 ITMO U 1 Contest E】Enumeration of Tournaments 题解 2019-09-24 【Petrozavodsk WC 2018d2 ITMO U 1 Contest I】Is It a p-drome? 题解 2019-09-19 【计蒜之道2019初赛1 BCD】【计蒜客39263】商汤AI园区的n个路口 题解 2019-09-18 【AtCoder Grand 035D】Add and Remove 题解 2019-09-13 【CF1214G】Feeling Good 题解