--- Day 4: Secure Container ---

Post your solution using /u/topaz2078's [paste](https://top...

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[–][deleted]28 points6 years, 1 month ago

Regex

Part 1

^(?=[0-9]{6}$)(?=.*([0-9])\1)(?:0|1(?!0)|2(?![01])|3(?![0-2])|4(?![0-3])|5(?![0-4])|6(?![0-5])|7(?![0-6])|8(?![0-7])|9(?![0-8]))+$

Part 2

^(?=[0-9]{6}$)(?=(?:.*([0-9])(?!\1))?([0-9])\2(?!\2))(?:0|1(?!0)|2(?![01])|3(?![0-2])|4(?![0-3])|5(?![0-4])|6(?![0-5])|7(?![0-6])|8(?![0-7])|9(?![0-8]))+$

Matches valid passwords. I had to, sorry. Generate a list of integers in range, and count matches.

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[–][deleted]19 points6 years, 1 month ago

This is hate speech

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[–]repocin1 point6 years, 1 month ago

I'm not even going to attempt parsing that but I do wonder how you wrote that.

Like, where did you even begin?

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[–][deleted]4 points6 years, 1 month ago

Some people did mention use of regex in their solutions, and I figured, hm, I think I could write the entire thing in regex (and because of https://www.xkcd.com/356/, I started working on it). I started with the part about digits never decreasing, and went down from here. I have used https://regex101.com/ to determine whether my regular expression works.

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[–]repocin1 point6 years, 1 month ago

Alright, thanks. :)

I think that's pretty much how I would attempt to tackle it as well, but I certainly don't have as much patience as you do, lol.

Was mostly wondering if you had some 1337 trick up your sleeve. ;)

^{^Dammit,} ^{^now} ^{^I} ^{^kinda} ^{^want} ^{^to} ^{^attempt} ^{^doing} ^{^this} ^{^on} ^{^my} ^{^own...}

Awesome work, btw!

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