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Clean up solution for 2015 day 05

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This commit is contained in:
Patrick Auernig 2021-02-08 23:59:02 +01:00
parent dba3f818c9
commit e01a31bd09
1 changed files with 10 additions and 24 deletions
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34
2015/day-05/main.rb
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@ -3,8 +3,6 @@
require "pathname"
require "set"
DEBUG = false
INPUTS = [
Pathname("inputs/test.txt"),
Pathname("inputs/puzzle.txt"),
@ -24,15 +22,17 @@ def twin_letters(input)
end
def letter_pairs_count(input)
last_index = input.size - 4
input
characters = input
.each_char
.each_cons(4)
.reject { |(a, b, c, d)| (a == b && b == c || b == c && c == d ) && a != d }
.each_with_index
.flat_map { |(a, b, c, d), i| i == last_index ? [a+b, b+c, c+d] : [a+b] }
.tally
.values.max || 0
last_index = characters.size
pairs = characters
.flat_map
.with_index(1) { |(a, b, c, d), i| i == last_index ? [a+b, b+c, c+d] : [a+b] }
pairs.tally.values.max || 0
end
def surrounded_letter_count(input)
@ -66,26 +66,12 @@ def count_nice(file)
end
def solve_part_1(file)
nice_lines = count_nice(file) do |l|
nice = is_nice?(l)
if DEBUG
puts(nice ? "\t#{l} is nice" : "\t#{l} is not nice")
puts "\t" + (" -" * 10)
end
nice
end
nice_lines = count_nice(file) { |l| is_nice?(l) }
puts "\tThere are #{nice_lines} nice lines"
end
def solve_part_2(file)
nice_lines = count_nice(file) do |l|
nice = is_really_nice?(l)
if DEBUG
puts(nice ? "\t#{l} is really nice" : "\t#{l} is not really nice")
puts "\t" + (" -" * 15)
end
nice
end
nice_lines = count_nice(file) { |l| is_really_nice?(l) }
puts "\tThere are #{nice_lines} really nice lines"
end