6883.Pattern Positions

Time Limit: 1s Memory Limit: 512MB

Given a string and patterns, find for each pattern the first position (1-indexed) where it appears in the string.

Input Format(From the terminal/stdin)

The first input line has a string of length $n$ .

The next input line has an integer $k$ : the number of patterns. Finally, there are $k$ lines that describe the patterns.

The string and the patterns consist of characters a–z.

  • $1 \le n \le 10^5$
  • $1 \le k \le 5 \cdot 10^5$
  • the total length of the patterns is at most $5 \cdot 10^5$

Output Format(To the terminal/stdout)

Print the first position for each pattern (or $-1$ if it does not appear at all).

Sample Input

Copy
aybabtu
3
bab
abc
a
       \n
 \n
   \n
   \n
 \n

Sample Output

Copy
3
-1
1
 \n
  \n
 \n
Source: CSES, String Algorithms, 2104

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