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ZOJ 3772 Calculate the Function 【线段树维护矩阵乘法】
传送门：ZOJ 3772Calculate the FunctionYou are given a list of numbers A1 A2 … AN and M queries. For the i-th query:The query has two parameters Li and Ri.The query will define a function Fi(x) on...原创 2019-09-09 20:24:42 · 299 阅读 · 0 评论 -
2019 ICPC 南昌网络赛 C题 Hello 2019【线段树维护矩阵+dp】
传送门：C.Hello 2019A digital string is “good”: when it contains a subsequence 9102 and does not contain a subsequence 8102.The bad value of a string is defined as how many characters are to remove ...原创 2019-09-10 15:57:18 · 360 阅读 · 0 评论