2021-11-10 14:50:43 +00:00
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#!/bin/env ruby
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# Sum all numbers in the text file.
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# Part 1
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2021-11-10 16:44:37 +00:00
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sum = File.readlines('./input').map { |line| line.to_i}.sum
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# Part 2
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numbers = File.readlines('./input').map { |line| line.to_i}
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freqs = [0]
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numbers.cycle do |num|
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freqs.push(freqs[-1] + num)
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break if freqs[0..-2].include?(freqs[-1])
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end
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puts freqs[-1]
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