Regexps

Rings of Power

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Using special characters, create a regex instance named regex that matches all the strings below:

"20 rings", "9 rings", "7 rings", "3 rings", "1 ring".

Tip: Your task is to make a regex that suits the situation best. Don't try to write a universal pattern: use the characters . and ?.

“Where there's life there's hope.”
― J.R.R. Tolkien

Sample Input 1:

9 rings

Sample Output 1:

true

Sample Input 2:

1 ring

Sample Output 2:

true

Sample Input 3:

many different rings

Sample Output 3:

false

Sample Input 4:

100 rings

Sample Output 4:

false

Write a program in Kotlin

val regex = TODO()

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