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chore: add headers for the Day 8 tasks
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2021/solutions.livemd
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2021/solutions.livemd
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## Setup
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```elixir
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Mix.install([
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{:nx, github: "elixir-nx/nx", sparse: "nx"}
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])
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Mix.install([])
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```
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```output
···
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]>
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```
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### Task 1
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We simply need to count all occurences of the values that have 2, 3, 4, or 7 highlighted
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segments.
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```elixir
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input
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|> Enum.map(fn {_, output} ->
···
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```output
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```
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### Task 2
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```elixir
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defmodule Day8.Task2 do