Mercurial > repos > other > adventofcode2023
view day1.rb @ 31:47dc75915e91
Implement falling/destroying blocks
Implemented part 1 with supports/supported by logic.
Implemented part 2 with cascades and summing counts. Code has
caching so it is quick _but_ it gives an answer that's too low.
author | IBBoard <dev@ibboard.co.uk> |
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date | Wed, 03 Jan 2024 17:00:56 +0000 |
parents | 76cc43966538 |
children |
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#! /usr/bin/env ruby if ARGV.length != 1 abort("Incorrect arguments - pass a single file") elsif not File.exist? (ARGV[0]) abort ("File #{ARGV[0]} did not exist") end file = ARGV[0] sum = 0 File.open(file, "r").each_line do |line| match = /^[^0-9]*([0-9]).*?(([0-9])[^0-9]*)?$/.match(line) if match first_num = match[1].to_i second_num = match[3].nil? ? first_num : match[3].to_i sum += (first_num * 10) + second_num end end puts sum