···

       
10
       
 
       
## Setup

     

       
11
       
 
       


     

       
12
       
 
       
```elixir

     

       
13
       
-
       
Mix.install([

     

       
14
       
-
       
  {:nx, github: "elixir-nx/nx", sparse: "nx"}

     

       
15
       
-
       
])

     

       
16
       
 
       
```

     

       
17
       
 
       


     

       
18
       
 
       
```output

     
···

       
617
       
 
       
]>

     

       
618
       
 
       
```

     

       
619
       
 
       


     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
620
       
 
       
```elixir

     

       
621
       
 
       
input

     

       
622
       
 
       
|> Enum.map(fn {_, output} ->

     
···

       
628
       
 
       
```output

     

       
629
       
 
       
390

     

       
630
       
 
       
```

     

       
0
       
 
       

     

       
0
       
 
       

     

       
631
       
 
       


     

       
632
       
 
       
```elixir

     

       
633
       
 
       
defmodule Day8.Task2 do

     

···

       
10
       
 
       
## Setup

     

       
11
       
 
       


     

       
12
       
 
       
```elixir

     

       
13
       
+
       
Mix.install([])

     

       
0
       
 
       

     

       
0
       
 
       

     

       
14
       
 
       
```

     

       
15
       
 
       


     

       
16
       
 
       
```output

     
···

       
615
       
 
       
]>

     

       
616
       
 
       
```

     

       
617
       
 
       


     

       
618
       
+
       
### Task 1

     

       
619
       
+
       


     

       
620
       
+
       
We simply need to count all occurences of the values that have 2, 3, 4, or 7 highlighted

     

       
621
       
+
       
segments.

     

       
622
       
+
       


     

       
623
       
 
       
```elixir

     

       
624
       
 
       
input

     

       
625
       
 
       
|> Enum.map(fn {_, output} ->

     
···

       
631
       
 
       
```output

     

       
632
       
 
       
390

     

       
633
       
 
       
```

     

       
634
       
+
       


     

       
635
       
+
       
### Task 2

     

       
636
       
 
       


     

       
637
       
 
       
```elixir

     

       
638
       
 
       
defmodule Day8.Task2 do