2023.02

Q1: 2204
Q1 completed in 2.804ms
Q2: 71036
Q2 completed in 2.936ms

challenges/2023/02.exs

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+Code.compile_file(Path.join([__ENV__.file], ["../../../utils/utils.exs"]))
+
+defmodule Challenge do
+  @moduledoc false
+
+  def first_result(input) do
+    input
+    |> parse_games()
+    |> Enum.filter(&within_limits?/1)
+    |> Enum.reduce(0, &(Enum.at(&1, 0)["game_no"] + &2))
+  end
+
+  def second_result(input) do
+    input
+    |> parse_games()
+    |> Enum.reduce(0, fn rounds, acc ->
+      [r, g, b] =
+        Enum.reduce(rounds, [0, 0, 0], fn round, [r, g, b] ->
+          [max(round["red"], r), max(round["green"], g), max(round["blue"], b)]
+        end)
+
+      r * g * b + acc
+    end)
+  end
+
+  defp within_limits?(rounds) when is_list(rounds), do: Enum.all?(rounds, &within_limits?/1)
+  defp within_limits?(r) when is_map(r), do: r["red"] <= 12 && r["green"] <= 13 && r["blue"] <= 14
+
+  defp parse_games(input) do
+    input
+    |> Enum.with_index(1)
+    |> Enum.map(fn {game, game_no} ->
+      game
+      |> String.split(": ")
+      |> List.last()
+      |> String.replace(" ", "")
+      |> String.split(";")
+      |> Enum.map(fn round ->
+        colors_and_numbers = %{"red" => 0, "green" => 0, "blue" => 0, "game_no" => game_no}
+
+        round
+        |> String.split(",")
+        |> Enum.reduce(colors_and_numbers, fn round, acc ->
+          ["", number_string, color] = Regex.split(~r/\d+/, round, include_captures: true)
+          Map.put(acc, color, String.to_integer(number_string))
+        end)
+      end)
+    end)
+  end
+end
+
+Utils.run(&Challenge.first_result/1, __ENV__.file, "Q1")
+Utils.run(&Challenge.second_result/1, __ENV__.file, "Q2")

challenges/2023/02.js

@@ -0,0 +1,78 @@
+// Part 1
+const solvePuzzle1 = (input) => {
+  const limits = { red: 12, green: 13, blue: 14 };
+
+  const games = input.split('\n').map((line, idx) => {
+    const rounds = line.split(': ')[1];
+
+    return rounds
+      .replaceAll(' ', '')
+      .split(';')
+      .map((round) => {
+        const colorsAndNumbers = {
+          red: 0,
+          green: 0,
+          blue: 0,
+          gameNo: idx + 1,
+        };
+
+        round.split(',').forEach((numAndColor) => {
+          const number = numAndColor.match(/^\d+/)[0];
+          const color = numAndColor.slice(number.length);
+          colorsAndNumbers[color] += Number(number);
+        });
+
+        return colorsAndNumbers;
+      });
+  });
+
+  const legalGames = games.filter((rounds) => {
+    return rounds.every((game) => game.red <= limits.red && game.green <= limits.green && game.blue <= limits.blue);
+  });
+
+  return legalGames.reduce((acc, rounds) => rounds[0].gameNo + acc, 0);
+};
+
+// Part 2
+const solvePuzzle2 = (input) => {
+  const games = input.split('\n').map((line, idx) => {
+    const rounds = line.split(': ')[1];
+
+    return rounds
+      .replaceAll(' ', '')
+      .split(';')
+      .map((round) => {
+        const colorsAndNumbers = {
+          red: 0,
+          green: 0,
+          blue: 0,
+          gameNo: idx + 1,
+        };
+
+        round.split(',').forEach((numAndColor) => {
+          const number = numAndColor.match(/^\d+/)[0];
+          const color = numAndColor.slice(number.length);
+          colorsAndNumbers[color] += Number(number);
+        });
+
+        return colorsAndNumbers;
+      });
+  });
+
+  const minimumRequiredBallsForGames = games.map((rounds) => {
+    const rgbMinimums = [0, 0, 0];
+
+    rounds.forEach((round) => {
+      rgbMinimums[0] = Math.max(rgbMinimums[0], round.red);
+      rgbMinimums[1] = Math.max(rgbMinimums[1], round.green);
+      rgbMinimums[2] = Math.max(rgbMinimums[2], round.blue);
+    });
+
+    return rgbMinimums;
+  });
+
+  return minimumRequiredBallsForGames.reduce((acc, rounds) => rounds[0] * rounds[1] * rounds[2] + acc, 0);
+};
+
+require(__dirname + '/../../utils/test.js').test(__filename, __dirname, solvePuzzle1, '1');
+require(__dirname + '/../../utils/test.js').test(__filename, __dirname, solvePuzzle2, '2');

challenges/2023/inputs/02.txt

@@ -0,0 +1,100 @@
+Game 1: 7 red, 14 blue; 2 blue, 3 red, 3 green; 4 green, 12 blue, 15 red; 3 green, 12 blue, 3 red; 11 red, 2 green
+Game 2: 16 blue, 9 red, 5 green; 8 red; 8 blue, 5 green, 12 red; 11 blue, 8 green, 17 red
+Game 3: 8 green, 1 blue, 7 red; 12 red, 6 blue, 9 green; 2 blue, 1 red, 14 green; 9 green, 4 red; 2 red, 1 blue, 8 green
+Game 4: 1 blue, 3 green; 2 green, 1 blue, 1 red; 1 red, 3 green
+Game 5: 6 red, 1 blue; 1 green; 5 red, 2 green; 1 red, 1 blue, 3 green
+Game 6: 3 green, 4 red, 1 blue; 2 blue, 5 green, 2 red; 12 green, 3 blue, 2 red; 4 blue, 1 green, 4 red; 11 green, 6 red; 5 green, 10 red, 3 blue
+Game 7: 2 blue, 3 green, 16 red; 1 blue, 3 red; 2 green, 13 red; 18 red, 2 blue, 1 green; 3 red, 1 blue
+Game 8: 4 red, 3 blue, 8 green; 2 red, 16 green; 2 red, 1 blue
+Game 9: 4 green, 14 blue, 8 red; 17 blue, 3 red, 5 green; 2 green, 4 red, 6 blue; 7 red, 2 green, 18 blue; 3 red, 19 blue, 4 green; 4 green, 8 red, 6 blue
+Game 10: 12 green, 7 red, 1 blue; 6 red, 12 green; 6 red, 7 green, 1 blue; 1 red, 1 blue, 18 green; 11 green, 1 blue
+Game 11: 10 green, 3 red, 13 blue; 13 blue, 6 green, 8 red; 12 blue, 4 green, 8 red; 9 green, 9 red, 3 blue; 6 blue, 7 green, 6 red; 11 blue, 13 green
+Game 12: 9 green, 2 blue; 4 green, 1 blue, 7 red; 2 green, 1 blue, 5 red
+Game 13: 1 green; 7 blue, 1 red, 2 green; 8 blue, 2 green
+Game 14: 8 red, 3 green; 1 red, 8 green; 1 blue, 10 green
+Game 15: 1 blue, 6 green, 14 red; 3 red, 1 blue, 6 green; 4 green; 1 blue, 5 green, 2 red; 2 blue, 1 green, 6 red; 4 red, 8 green, 1 blue
+Game 16: 1 green, 6 red, 8 blue; 1 green, 11 blue, 1 red; 7 blue, 3 green, 4 red; 2 green, 6 red, 12 blue
+Game 17: 3 blue, 4 red, 4 green; 18 blue, 6 red, 11 green; 2 green, 6 red, 17 blue; 12 green, 3 blue, 5 red
+Game 18: 3 green, 2 blue, 10 red; 7 green, 10 blue; 9 blue, 7 red, 14 green; 18 green, 10 blue, 11 red; 10 red, 2 blue, 16 green
+Game 19: 6 red, 1 green, 18 blue; 2 red, 1 blue; 7 blue, 3 red, 2 green; 18 blue, 2 green, 1 red; 7 red, 10 blue
+Game 20: 13 blue, 2 red; 2 green, 2 red; 1 green, 9 blue
+Game 21: 4 blue, 1 red; 2 red, 4 blue, 1 green; 3 red; 4 green, 1 red, 1 blue; 3 green, 9 blue, 1 red
+Game 22: 7 blue, 5 green, 14 red; 15 red, 9 blue, 11 green; 10 blue, 5 red, 11 green; 14 red, 10 blue, 13 green
+Game 23: 10 red, 6 blue; 1 red, 4 blue, 3 green; 3 green, 2 blue; 5 red, 3 green; 3 green, 4 blue, 5 red; 3 green, 7 red, 6 blue
+Game 24: 4 red, 8 green; 1 red, 10 green; 2 red, 1 green; 2 green, 1 blue; 4 red, 12 green; 3 green
+Game 25: 5 red, 2 blue, 6 green; 4 red, 3 blue, 8 green; 11 green, 4 red, 1 blue
+Game 26: 5 blue, 1 red; 18 blue, 4 green; 9 green, 3 red, 17 blue; 6 green, 10 blue, 1 red; 3 blue, 7 green; 4 blue, 3 red, 5 green
+Game 27: 13 red, 2 blue; 7 blue, 2 green, 12 red; 1 green, 9 blue, 9 red; 4 red, 4 green, 8 blue; 13 red, 6 blue; 3 red, 9 blue, 3 green
+Game 28: 1 blue, 12 green, 1 red; 1 blue, 12 green, 2 red; 2 red, 8 green, 1 blue; 5 green, 2 red; 1 blue, 9 green, 6 red; 1 blue, 13 green
+Game 29: 5 blue, 5 red, 11 green; 15 blue, 5 red, 10 green; 2 red, 11 green, 19 blue; 19 blue, 3 green, 6 red
+Game 30: 1 blue, 12 red, 1 green; 12 blue, 1 red, 2 green; 12 red, 5 green; 2 red, 2 green, 5 blue; 5 red, 2 green, 6 blue
+Game 31: 20 green, 1 red, 16 blue; 3 green, 1 red, 7 blue; 6 red, 18 blue, 8 green
+Game 32: 5 green; 1 blue, 2 red, 5 green; 1 blue, 2 red, 5 green; 2 green, 2 red
+Game 33: 6 blue, 5 green; 6 blue, 3 red, 1 green; 4 green, 3 blue, 2 red; 1 red, 6 blue, 5 green; 1 blue, 2 red, 5 green; 4 red, 3 blue
+Game 34: 12 red, 12 green; 12 red, 7 green; 1 blue, 12 red, 11 green; 7 red, 7 green, 2 blue
+Game 35: 3 red, 3 blue, 1 green; 1 green, 5 red, 5 blue; 8 green, 2 red, 14 blue; 8 green; 6 blue, 3 red, 6 green; 1 red, 1 blue, 12 green
+Game 36: 13 red, 5 blue; 13 blue, 10 green, 6 red; 10 red, 5 green, 10 blue; 10 blue, 8 green, 6 red; 1 green, 14 red, 2 blue; 8 green, 4 blue
+Game 37: 6 green, 1 red; 1 blue, 4 green, 1 red; 1 red, 14 green; 1 red, 9 green; 1 green, 1 red; 9 green, 1 red
+Game 38: 1 green, 4 blue, 17 red; 13 red, 9 blue, 12 green; 7 green, 11 blue
+Game 39: 18 green, 9 blue, 2 red; 11 red, 1 blue, 4 green; 9 red, 4 green, 10 blue; 9 blue, 5 red, 2 green
+Game 40: 3 green, 8 red; 2 green, 6 red; 1 green, 9 red, 4 blue; 1 blue, 6 red; 2 green, 2 blue, 3 red
+Game 41: 3 red, 15 green, 3 blue; 19 green, 2 red, 5 blue; 8 blue, 7 green, 4 red; 3 blue, 4 red, 5 green; 1 blue; 6 blue, 15 green, 3 red
+Game 42: 2 red, 18 blue, 6 green; 3 green, 2 blue, 8 red; 9 blue, 1 green, 5 red; 12 red, 3 blue, 8 green
+Game 43: 3 blue, 1 green, 3 red; 8 blue, 3 green, 1 red; 3 red, 5 blue; 3 green, 3 red, 7 blue; 6 blue, 1 green, 2 red; 7 blue, 2 green, 5 red
+Game 44: 2 green, 5 blue, 1 red; 9 red, 16 blue; 4 blue, 2 green, 12 red; 13 red, 5 blue, 10 green; 4 green, 3 blue, 11 red
+Game 45: 6 blue, 3 red, 13 green; 10 green, 13 blue, 12 red; 7 red, 19 blue, 16 green; 15 blue, 4 red, 11 green; 1 red, 4 green
+Game 46: 11 red, 2 green; 5 blue, 2 red, 2 green; 3 green, 8 red, 6 blue; 3 blue, 10 green, 8 red
+Game 47: 6 green, 16 red; 4 blue, 4 red, 2 green; 3 blue, 1 green, 12 red; 2 red, 4 blue, 4 green; 2 blue, 16 red; 5 blue, 5 green, 5 red
+Game 48: 8 red, 1 blue; 1 green, 2 blue, 6 red; 11 red, 6 green, 2 blue
+Game 49: 5 green, 16 blue, 2 red; 2 red, 20 blue, 6 green; 1 red, 3 blue, 5 green; 7 green, 4 blue
+Game 50: 9 red, 8 green; 11 green, 10 red, 1 blue; 9 red, 5 green; 1 blue, 12 green, 8 red; 1 blue, 5 green, 2 red; 6 green, 1 blue, 2 red
+Game 51: 1 red, 4 blue; 1 red, 3 green, 3 blue; 1 green, 1 red, 2 blue
+Game 52: 11 red, 4 blue; 1 green, 6 blue, 10 red; 8 blue, 13 red
+Game 53: 6 green, 9 red; 4 blue, 13 red, 2 green; 10 red, 5 green, 3 blue; 11 red, 3 blue, 4 green
+Game 54: 16 red, 9 blue, 8 green; 9 red, 1 blue; 12 green, 2 red, 13 blue; 5 blue, 14 green, 15 red; 3 green, 2 red, 2 blue
+Game 55: 3 green, 4 blue, 5 red; 3 red, 9 green, 1 blue; 3 blue, 4 green, 5 red; 4 green, 3 blue, 7 red; 5 red, 2 blue; 2 blue, 8 red, 5 green
+Game 56: 3 red, 5 green, 3 blue; 15 red, 3 green, 15 blue; 3 green, 1 blue, 10 red; 15 blue, 1 red, 2 green; 6 red, 16 blue, 6 green; 19 red, 16 blue
+Game 57: 5 blue, 1 red, 5 green; 8 blue, 16 green; 13 green, 5 blue, 3 red; 1 blue, 1 red, 13 green; 12 green, 3 red, 4 blue; 8 blue, 3 red, 1 green
+Game 58: 5 blue, 4 green; 7 blue, 1 red, 10 green; 1 red, 13 green, 4 blue; 7 blue, 12 green, 4 red; 4 red, 13 green, 5 blue; 2 green, 1 blue, 12 red
+Game 59: 2 red, 11 blue, 6 green; 1 green, 8 blue, 3 red; 4 red, 6 blue
+Game 60: 4 green, 1 red; 3 blue, 15 red, 2 green; 13 red, 16 blue, 2 green; 6 green, 13 blue, 10 red; 15 blue, 11 red, 5 green; 7 blue, 4 green
+Game 61: 14 red, 2 green, 14 blue; 1 green, 15 red, 3 blue; 2 green, 8 blue
+Game 62: 13 green, 13 blue; 1 red, 6 green, 1 blue; 13 blue, 16 green; 3 blue, 1 red, 2 green
+Game 63: 10 blue, 3 red, 4 green; 15 red; 10 blue, 10 green, 14 red; 9 blue, 6 green; 3 blue, 7 green, 13 red
+Game 64: 2 red, 4 green; 1 blue, 9 red; 1 green, 2 blue, 10 red; 9 red, 1 blue, 5 green; 6 green, 6 red
+Game 65: 10 blue, 4 green; 4 green, 2 red, 9 blue; 11 red, 1 green, 10 blue; 14 green, 19 blue, 3 red; 12 red, 5 blue, 11 green; 14 blue, 12 green, 11 red
+Game 66: 5 blue, 2 red; 5 blue, 1 green, 7 red; 14 red, 1 green, 2 blue; 8 red, 7 blue; 2 red, 4 blue, 1 green; 2 blue, 18 red
+Game 67: 6 red, 1 blue; 5 green, 2 blue, 1 red; 2 red, 3 green, 3 blue; 8 green, 4 blue, 6 red
+Game 68: 4 blue, 1 green; 12 blue, 2 red, 3 green; 2 green, 7 blue; 1 red, 19 blue, 3 green
+Game 69: 6 green, 11 red, 2 blue; 1 blue, 7 green, 6 red; 1 blue, 8 red; 17 red, 3 blue, 5 green
+Game 70: 2 green, 6 red, 4 blue; 2 green, 7 red, 1 blue; 11 blue, 1 green
+Game 71: 10 blue, 9 red; 3 red, 10 blue; 1 red, 8 blue, 2 green; 7 blue, 4 green, 5 red; 6 red, 2 blue, 7 green; 5 red, 2 blue, 4 green
+Game 72: 1 green, 12 blue, 8 red; 9 red, 3 blue; 2 red, 2 green, 10 blue
+Game 73: 7 red, 3 green, 11 blue; 4 green, 7 blue; 6 blue, 13 green, 9 red; 11 green, 4 blue; 12 blue, 3 red, 2 green; 9 green
+Game 74: 5 blue, 2 red; 6 red, 1 blue, 8 green; 6 green, 5 blue, 16 red; 1 green, 9 red, 3 blue; 12 green, 1 red, 1 blue; 2 blue, 7 green, 13 red
+Game 75: 5 green, 20 red; 7 red, 6 green, 2 blue; 4 green, 2 blue; 2 blue, 1 green, 3 red; 2 blue, 2 green, 12 red; 6 red, 6 green
+Game 76: 9 red, 12 green, 3 blue; 2 blue, 1 red, 6 green; 13 green, 2 blue; 2 red, 7 green, 3 blue; 7 red, 4 green, 2 blue; 2 red, 3 blue, 3 green
+Game 77: 2 blue, 6 red; 4 red, 15 green, 1 blue; 7 green, 5 blue, 6 red; 4 red, 5 blue
+Game 78: 5 blue, 3 red, 1 green; 2 green, 7 red, 3 blue; 3 blue, 5 red, 5 green
+Game 79: 6 red, 9 blue, 1 green; 9 green, 8 red, 7 blue; 1 blue, 12 green, 13 red; 7 red, 14 blue, 2 green; 13 blue, 4 green, 9 red; 4 blue, 2 green
+Game 80: 4 green, 2 blue; 5 green, 3 red, 8 blue; 9 blue, 11 red, 4 green; 2 blue, 3 green, 4 red; 5 red
+Game 81: 8 red, 3 blue, 4 green; 13 blue, 8 red, 1 green; 6 blue, 1 green; 18 green, 6 red, 10 blue; 17 green, 8 blue, 3 red; 6 red, 5 green, 12 blue
+Game 82: 3 red, 7 blue; 4 red, 6 blue, 14 green; 9 blue, 2 green, 3 red
+Game 83: 1 blue, 2 red; 5 green, 16 red; 12 red, 1 green; 8 green, 8 red
+Game 84: 3 red, 9 green, 1 blue; 3 red, 6 blue, 7 green; 5 red, 8 green, 8 blue; 5 red, 3 blue, 11 green; 3 green, 4 blue; 4 green, 1 blue, 2 red
+Game 85: 4 red, 6 blue, 1 green; 7 red, 6 blue; 9 red, 1 green; 1 blue, 1 green, 10 red; 2 red, 2 blue, 1 green; 5 blue, 7 red
+Game 86: 4 blue, 5 green, 6 red; 9 red, 3 blue; 5 green, 3 red, 10 blue; 3 green, 7 blue, 3 red; 4 red; 4 green, 1 blue, 8 red
+Game 87: 3 red, 3 green; 3 blue, 1 green; 3 red, 3 green; 3 red, 1 blue, 3 green; 2 green, 1 red
+Game 88: 1 red, 13 green, 3 blue; 17 blue, 14 green, 5 red; 3 red, 19 blue, 13 green; 7 green, 19 blue; 5 red, 13 green, 17 blue; 13 blue, 8 green, 2 red
+Game 89: 3 blue, 4 red; 2 green, 15 red, 1 blue; 3 green, 3 blue, 13 red; 3 blue, 9 red, 2 green; 8 red
+Game 90: 2 red, 2 green, 1 blue; 3 blue, 2 green; 1 blue, 2 green, 4 red; 3 blue
+Game 91: 13 blue, 5 green, 4 red; 17 blue, 8 red, 11 green; 1 green, 6 red, 19 blue; 12 blue, 6 green; 7 green, 2 red
+Game 92: 6 red, 4 green; 2 blue, 11 red; 4 green, 7 blue; 2 red, 12 blue, 2 green
+Game 93: 3 blue, 2 red; 2 blue, 11 red, 1 green; 7 red, 1 green; 1 red, 2 blue; 13 red, 3 blue
+Game 94: 2 blue, 1 red, 20 green; 1 red, 4 blue, 10 green; 1 red, 20 green, 13 blue; 20 green
+Game 95: 6 blue, 1 green; 3 red, 11 green; 4 blue
+Game 96: 4 red, 4 green, 3 blue; 4 green, 17 blue, 3 red; 3 red, 3 blue, 13 green; 8 red, 7 blue, 6 green
+Game 97: 5 blue, 9 green; 4 green, 4 blue; 4 red, 19 green; 2 red, 3 green; 19 green, 3 blue, 4 red; 3 red, 10 green
+Game 98: 4 blue, 10 red, 8 green; 2 red, 3 green; 5 red, 4 blue, 10 green
+Game 99: 9 blue, 12 red; 9 blue, 11 red, 13 green; 9 blue, 1 red, 13 green; 4 blue, 12 green; 10 blue, 17 red, 8 green
+Game 100: 8 red, 3 green; 4 green, 1 blue, 15 red; 10 red, 8 green, 1 blue