A string is finite sequence of characters over a non-empty finite set Σ.
In this problem, Σ is the set of lowercase letters.
Substring, also called factor, is a consecutive sequence of characters occurrences at least once in a string.
Now your task is a bit harder, for some given strings, find the length of the longest common substring of them.
Here common substring means a substring of two or more strings.
The input contains at most 10 lines, each line consists of no more than 100000 lowercase letters, representing a string.
The length of the longest common substring. If such string doesn‘t exist, print "0" instead.
Input: alsdfkjfjkdsal fdjskalajfkdsla aaaajfaaaa Output: 2
Notice: new testcases added
就是求多个字符串的最长公共子串
后缀自动机
用第一个串建后缀自动机,然后在这个自动机上花式转移。
solve()里面tmp没初始化,调了半天……
SPOJ LCS2 Longest Common Substring II
原文:http://www.cnblogs.com/SilverNebula/p/6403994.html