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AOC 2021 Puzzle 1
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Code in ruby for Puzzle 1 in the Advent of Code series of puzzles. |
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# The one-liner version for q1 - poxy code golf :D | |
puts(File.open(ARGV[0]).readlines.map(&:chomp).map(&:to_i).each.with_index.inject([0, 0]) do |(last, sum), (n, i)| | |
(i != 0 && n > last) ? [n, sum+1] : [n, sum] | |
end.last) |
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#!/usr/bin/env ruby | |
# | |
# Solves both q1 and q2 -- for q1 window size is 1 | |
def compute_windows(window_size, data) | |
if (window_size == 1) | |
data | |
else | |
data.each_cons(window_size).map(&:sum) | |
end | |
end | |
def count_increases(data) | |
_, count = data.each.with_index.inject([0, 0]) do |(last, sum), (n, i)| | |
(i != 0 && n > last) ? [n, sum+1] : [n, sum] | |
end | |
count | |
end | |
data = File.open(ARGV[0]).readlines.map(&:chomp).map(&:to_i) | |
puts count_increases(compute_windows(3, data)) |
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