Documentation

Compute the list of valid passwords starting from a given one. Note: This process works on reversed passwords with the rules updated to work on reversed strings. This is to make nextPassword easier to write.

Check that a string satisfies the descending and duplicate letter rules.

Test that a string has at least count non-overlapping double, adjacent letters.

Test that a string has a 3-length descending sequence.

Test that a character is not in the set of "iol"

Clean out the starting prohibited letters

Increment a string from left to right while skipping the prohibited characters.