22 lines
411 B
Plaintext
22 lines
411 B
Plaintext
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-- https://adventofcode.com/2019/day/1
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require "common"
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input = input_for_day 1
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-- part 1
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nums = -> input\gmatch "%d+"
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mass_to_fuel = => -2 + math.floor @ / 3
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print "Part 1:", reduce nums!, 0, (n) => @ + mass_to_fuel n
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-- part 2
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fuel_for_fuel = =>
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f = mass_to_fuel @
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print "fff:", f
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if f < 1 then return 0 else return f + fuel_for_fuel f
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print "Part 2:", reduce nums!, 0, (n) => @ + fuel_for_fuel(n)
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