欸MD炸了QAQ
by 绝顶我为峰 @ 2020-01-13 18:56:24
@[绝顶我为峰](/user/85682) 我来帮你了
我虽然要期末考试，但峰是巨佬，需要帮助时蒟蒻上！
by George1123 @ 2020-01-13 18:57:50
你怎么都会虚树dp了啊，我真的帮不了你
by George1123 @ 2020-01-13 18:58:37
@[♗Wendigo♝](/user/118365) 这是AC自动机啊qaq
虚树DP我为所未闻……
by 绝顶我为峰 @ 2020-01-13 18:59:34
@[♗Wendigo♝](/user/118365) 我过了qaq
此贴终结
by 绝顶我为峰 @ 2020-01-13 19:00:16
%%%
by George1123 @ 2020-01-13 19:02:55
%%%
by _Rainlzy @ 2020-01-13 19:18:19