Problem A
Deterministic Finite Automata - Read
Languages
en
is
You are given a deterministic finite automaton and a list of strings. For each string given, you should determine whether the automaton accepts or rejects the string.
Input
The first line of input contains four positive integers $n$, $c$, $s$, and $f$, where $n$ is the number of states, $c$ is the size of the alphabet, $s$ is the initial state, and $f$ is the number of final states. The second line consists of a string $\Sigma = \Sigma _1\Sigma _2\dots \Sigma _c$ of $c$ distinct symbols, each of which is a lowercase english character. The third line consists of $f$ distinct positive integers, the set of final states. Then $n$ lines follow, each with $c$ positive integers, describing the symbol table. The $j$-th integer on the $i$-th of those lines represents the state transitioned to from state $i$ upon reading $\Sigma _j$.
Each state is an integer between $1$ and $n$. It is guaranteed that $n \cdot c \leq 100\, 022$, $1 \leq s \leq n$, and $0 \leq f \leq n$.
After that a line with the integer $m$ follows, the number of strings to check, where $1 \leq m \leq 100\, 000$. Then $m$ lines follow, each with a string to check. Each string is between $0$ and $100\, 000$ characters in length and the total length of all strings combined is at most $100\, 000$. Each string will only consist of characters from the alphabet $\Sigma $.
Output
For each string to check, output a line containing either accept or reject, depending on whether the string was accepted or rejected.
Sample Input 1 | Sample Output 1 |
---|---|
3 2 1 1 ab 1 1 2 1 3 3 3 6 a aa ab abba aabaababa |
accept accept accept reject reject accept |
Sample Input 2 | Sample Output 2 |
---|---|
1 4 1 0 acgt 1 1 1 1 3 agaga gattaca |
reject reject reject |