21 lines
425 B
Ruby
21 lines
425 B
Ruby
def run(f)
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horizontal = 0
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depth = 0
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aim = 0
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f.each do |line|
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command, distance = line.split(' ')
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distance = Integer(distance)
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case command
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when 'forward'
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horizontal += distance
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depth += (aim * distance)
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when 'down'
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aim += distance
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when 'up'
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aim -= distance
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end
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end
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return horizontal * depth
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end
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