24 lines
451 B
Ruby
24 lines
451 B
Ruby
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#!/usr/bin/env ruby
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require_relative '../common'
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class Day01 < Day
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def part1
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measurements.each_with_index.inject(0) do |count, (value, i)|
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i > 0 && value > measurements[i - 1] ? count.succ : count
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end
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end
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def part2
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measurements.size.times.select do |i|
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i > 2 && measurements[i - 2, 3].sum > measurements[i - 3, 3].sum
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end.size
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end
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def measurements
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@measurements ||= input.map(&:to_i)
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end
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end
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Day01.run
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