2024/14/example.txt

@@ -1,12 +0,0 @@
-p=0,4 v=3,-3
-p=6,3 v=-1,-3
-p=10,3 v=-1,2
-p=2,0 v=2,-1
-p=0,0 v=1,3
-p=3,0 v=-2,-2
-p=7,6 v=-1,-3
-p=3,0 v=-1,-2
-p=9,3 v=2,3
-p=7,3 v=-1,2
-p=2,4 v=2,-3
-p=9,5 v=-3,-3

2024/14/solution.nix

@@ -1,84 +0,0 @@
-{lib, ...}: input: let
-  inherit (lib.strings) trim splitString toIntBase10;
-  inherit (builtins) match elemAt filter length genList concatStringsSep;
-  # real
-  width = 101;
-  height = 103;
-
-  # example
-  # width = 11;
-  # height = 7;
-
-  getQuadrants = {width, height}: robots: let
-    mid.x = width / 2;
-    mid.y = height / 2;
-    tl = robots |> filter ({pos, ...}: pos.x < mid.x && pos.y < mid.y);
-    tr = robots |> filter ({pos, ...}: pos.x > mid.x && pos.y < mid.y);
-    dl = robots |> filter ({pos, ...}: pos.x < mid.x && pos.y > mid.y);
-    dr = robots |> filter ({pos, ...}: pos.x > mid.x && pos.y > mid.y);
-  in {inherit tl tr dl dr;}
-  ;
-
-  robots = input
-    |> trim
-    |> splitString "\n"
-    |> map (line: line
-      |> match ''p=([0-9]+),([0-9]+) v=(-?[0-9]+),(-?[0-9]+)''
-      |> (nums: {
-        pos = {
-          x = elemAt nums 0 |> toIntBase10;
-          y = elemAt nums 1 |> toIntBase10;
-        };
-        vel = {
-          x = elemAt nums 2 |> toIntBase10;
-          y = elemAt nums 3 |> toIntBase10;
-        };
-      })
-    )
-  ;
-
-  pass = time: {pos, vel}: let
-    x = lib.mod (pos.x + (vel.x * time)) width;
-    y = lib.mod (pos.y + (vel.y * time)) height;
-  in {
-    pos = {
-      x = if x < 0 then width + x else x;
-      y = if y < 0 then height + y else y;
-    };
-  };
-
-  printMap = robots: genList (y:
-    genList (x:
-      robots
-        |> filter ({pos,...}: pos == {inherit x y;})
-        |> length
-        |> (amt: if amt == 0 then "." else toString amt)
-    ) width
-    |> concatStringsSep ""
-  ) height
-  |> concatStringsSep "\n";
-
-  anim = {start, period}: 100 |> genList (i: let
-    seconds = (i * period) + start;
-  in robots |> map (pass (seconds)) |>
-  (room: ''
-    seconds: ${toString seconds}
-    ${printMap room}
-  '')
-  ) |> concatStringsSep "\n";
-
-in {
-
-  inherit width height pass getQuadrants robots printMap;
-
-  part1result = robots 
-    |> map (pass 100)
-    |> getQuadrants {inherit width height;}
-    |> ({tl, tr, dr, dl}: (length tl) * (length tr) * (length dr) * (length dl))
-  ;
-
-  part2result = # figured these settings out after observing the first 500 seconds:
-    anim {start = 14; period = 101;}
-  |> builtins.toFile "robots-anim";
-
-}

2024/14/solution.test.nix

@@ -1,37 +0,0 @@
-{it, describe, ...}: let
-  pkgs = import <nixpkgs> {};
-  solution = import ./solution.nix pkgs;
-in [
-  (it "splits the stupid thing into quadrants" {
-    actual = (solution "").getQuadrants {width = 7; height = 5;} [
-      { pos.x = 2; pos.y = 1; }
-      { pos.x = 4; pos.y = 1; }
-      { pos.x = 2; pos.y = 3; }
-      { pos.x = 4; pos.y = 3; }
-      { pos.x = 0; pos.y = 2; }
-      { pos.x = 1; pos.y = 2; }
-      { pos.x = 2; pos.y = 2; }
-      { pos.x = 3; pos.y = 2; }
-      { pos.x = 4; pos.y = 2; }
-      { pos.x = 3; pos.y = 0; }
-      { pos.x = 3; pos.y = 1; }
-      { pos.x = 3; pos.y = 2; }
-      { pos.x = 3; pos.y = 3; }
-      { pos.x = 3; pos.y = 4; }
-    ];
-    expected = {
-      dl = [
-        { pos.x = 2; pos.y = 3; }
-      ];
-      dr = [
-        { pos.x = 4; pos.y = 3; }
-      ];
-      tr = [
-        { pos.x = 4; pos.y = 1; }
-      ];
-      tl = [
-        { pos.x = 2; pos.y = 1; }
-      ];
-    };
-  })
-]

2024/flake.lock

@@ -3,8 +3,8 @@
     "aoc-inputs": {
       "flake": false,
       "locked": {
-        "lastModified": 1734173652,
+        "lastModified": 1734085033,
-        "narHash": "sha256-jXnmQLoXNcaqYY/uupC8f8JQ27zdwSVBmxAnIxlennk=",
+        "narHash": "sha256-UlLhIP9NbAywjOGRkrULOa0e+AtY2Eb7Vgem/o/pN7Y=",
         "path": "/tmp/aoc-inputs",
         "type": "path"
       },

2024/flake.nix

@@ -25,7 +25,7 @@
     inherit (pkgs) lib;
 
 
-  in (lib.range 1 14
+  in (lib.range 1 13
   |> map (i: let id = lib.fixedWidthNumber 2 i; in {
     name = "day-${id}";
     value = let