71 lines
2.8 KiB
Plaintext
71 lines
2.8 KiB
Plaintext
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Advent of Code
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--- Day 10: Balance Bots ---
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You come upon a factory in which many robots are zooming around handing small microchips to
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each other.
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Upon closer examination, you notice that each bot only proceeds when it has two microchips,
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and once it does, it gives each one to a different bot or puts it in a marked "output" bin.
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Sometimes, bots take microchips from "input" bins, too.
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Inspecting one of the microchips, it seems like they each contain a single number; the bots
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must use some logic to decide what to do with each chip. You access the local control computer
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and download the bots' instructions (your puzzle input).
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Some of the instructions specify that a specific-valued microchip should be given to a
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specific bot; the rest of the instructions indicate what a given bot should do with its
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lower-value or higher-value chip.
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For example, consider the following instructions:
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value 5 goes to bot 2
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bot 2 gives low to bot 1 and high to bot 0
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value 3 goes to bot 1
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bot 1 gives low to output 1 and high to bot 0
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bot 0 gives low to output 2 and high to output 0
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value 2 goes to bot 2
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• Initially, bot 1 starts with a value-3 chip, and bot 2 starts with a value-2 chip and a
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value-5 chip.
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• Because bot 2 has two microchips, it gives its lower one (2) to bot 1 and its higher one
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(5) to bot 0.
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• Then, bot 1 has two microchips; it puts the value-2 chip in output 1 and gives the value-3
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chip to bot 0.
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• Finally, bot 0 has two microchips; it puts the 3 in output 2 and the 5 in output 0.
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In the end, output bin 0 contains a value-5 microchip, output bin 1 contains a value-2
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microchip, and output bin 2 contains a value-3 microchip. In this configuration, bot number 2
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is responsible for comparing value-5 microchips with value-2 microchips.
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Based on your instructions, what is the number of the bot that is responsible for comparing
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value-61 microchips with value-17 microchips?
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Your puzzle answer was ______.
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--- Part Two ---
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What do you get if you multiply together the values of one chip in each of outputs 0, 1, and
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2?
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Your puzzle answer was _______.
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References
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Visible links
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. http://adventofcode.com/
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. http://adventofcode.com/2016/about
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. http://adventofcode.com/2016/support
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. http://adventofcode.com/2016/events
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. http://adventofcode.com/2016/settings
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. http://adventofcode.com/2016/auth/logout
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. http://adventofcode.com/2016
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. http://adventofcode.com/2016
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. http://adventofcode.com/2016/leaderboard
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. http://adventofcode.com/2016/stats
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. http://adventofcode.com/2016/sponsors
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. http://adventofcode.com/2016/sponsors
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. https://www.youtube.com/watch?v=JnkMyfQ5YfY&t=40
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. http://adventofcode.com/2016
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. http://adventofcode.com/2016/day/10/input
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