Canopus

Description 对于一个给定长度为N的字符串，求它的第K小子串是什么。 Input 第一行是一个仅由小写英文字母构成的字符串S 第二行为两个整数T和K，T为0则表示不同位置的相同子串算作一个。T=1则表示不同位置的相同子串算作多个。K的意义如题所述。 Output 输出仅一行，为一个数字串，为第K小的子串。如果子串数目不足K个，则输出-1 Sample Input ...

Once upon a time there was a famous actress. As you may expect, she played mostly Antique Comedies most of all. All the people loved her. But she was not interested in the crowds. Her big hobby were b...

由于最近优快云对Markdown的支持不好，因此贴出Markdown代码：https://paste.ubuntu.com/p/Wd8PJnnxTf/ DFA ////////////////////////////////////////////////////////////////////////// DFA，即确定性有限状态自动机，由一个五元组M=(Σ,Q,qs,F,tr)M=(Σ...

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 oc...

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 oc...