If someone want a link to the documentation about full text search and @@ operator: https://www.postgresql.org/docs/current/textsearch-intro.html#TEXTSEARCH-MATCHING

you can replace the u64 at the start of the line by u32 and remove the as u32 at the end

This solution is the reason why CodeWars is so awesome.

You try to solve the kata by yourself and after you can see there is a very simple and straightforward way to achieve the same problem. And bonus, the solution is way faster

Thank you

Thank you very much for this kata. I learned a lot of things by trying to resolve it

group() without parameter corresponds to all the characters matching the regex pattern. Group(1) corresponds to the group 1 in the regex pattern.

With the string abc-def and the regex pattern .-(.) group() returns c-d and group(1) returns d

I love the way your code is organized. It is easy to read and understand

Probably not the goal of this kata, but your solution is a good practice

Good idea

You can also replace this lambda

size -> new String[size]

by a method reference

String[]::new