luogu#P9664. [ICPC2021 Macao R] LCS Spanning Tree
[ICPC2021 Macao R] LCS Spanning Tree
题目描述
Given a complete undirected graph of vertices and strings , the weight of edge connecting vertices and is equal to the length of the longest common substring (LCS) between and . Compute the maximum total weight of any spanning tree on this graph.
A substring of a string can be obtained by removing some (possibly zero) characters from the beginning and/or the end of that string. For example, maca
, aca
and cau
are all substrings of macau
, while acu
is not.
输入格式
There is only one test case in each test file.
The first line of the input contains one integer () indicating the number of vertices and strings.
For the following lines, the -th line contains one string () consisting only of lowercase English letters.
It's guaranteed that the sum of lengths of all strings will not exceed .
输出格式
Output one line containing one integer indicating the answer.
题目大意
【题目描述】
给定一个有 个顶点的完全无向图和 个字符串 ,连接顶点 和 的边的权重等于字符串 和 的最长公共子串(LCS)的长度。计算此图上任意生成树的最大总权重。
一个字符串的子串可以通过从该字符串的开头和/或结尾删除一些(可能为零)字符来获得。例如,“maca”、“aca” 和“cau”都是“macau”的子串,而“acu”不是。
【输入格式】
每个测试文件中包含一个测试用例。
输入的第一行包含一个整数 (),表示顶点和字符串的数量。
接下来的 行,第 行包含一个字符串 (),由小写英文字母组成。
保证所有字符串的长度之和不超过 。
【输出格式】
输出一行,包含一个整数,表示答案。
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4
icpc
macau
regional
contest
4
3
ababa
babab
aba
7