30 lines
467 B
Ruby
30 lines
467 B
Ruby
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#!/usr/bin/env ruby
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require 'pry'
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# Part 1
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real_input = File.read("./input")
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sample = '3 4
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4 3
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2 5
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1 3
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3 9
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3 3'
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input = real_input
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col1 = input.split("\n").map(&:split).map{ | pair | pair[0].to_i}.sort
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col2 = input.split("\n").map(&:split).map{ | pair | pair[1].to_i}.sort
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#binding.pry
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solution = col1.zip(col2).map{ | left, right | (right - left).abs }.sum
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puts solution
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# Part 2
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p2 = col1.map{ | value | value * col2.count(value)}.sum
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puts p2
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