docs: brainmade logo added

README.md

@@ -2,6 +2,8 @@
 
 [Advent of Code](https://adventofcode.com/) problems of 2025.
 
+### Progress
+
 | Day | Name                | Part 1 | Part 2 |
 | :-: | :------------------ | :----: | :----: |
 |  1  | Secret Entrance     |   ⭐   |   ⭐   |
@@ -10,5 +12,22 @@
 |  4  | Printing Department |   ⭐   |   ⭐   |
 |  5  | Cafeteria           |   ⭐   |   ⭐   |
 |  6  | Trash Compactor     |   ⭐   |   ⭐   |
-|  7  | Laboratories        |   ⭐   |        |
+|  7  | Laboratories        |   ⭐   |   ⏱️   |
-|  8  | Playground          |        |        |
+|  8  | Playground          |   ⭐   |   ⭐   |
+|  9  | Movie Theater       |   ⭐   |   🌓   |
+|  10 | Factory             |   ⭐   |   ⏱️   |
+|  11 | Reactor             |   ⭐   |        |
+|  12 | Christmas Tree Farm |        |        |
+
+### Symbols
+
+- 🌓 Completed with test input but some corner-case left on real input.
+- ⏱️ Completed with test input but to slow to complete with real input.
+- ⭐ All done.
+
+## Brain made
+
+1. I don't hate AIs,
+2. I love humans!
+
+![Brainmade logo](https://brainmade.org/white-logo.svg)

src/__tests__/day_10_test.ts

@@ -0,0 +1,22 @@
+import { assertEquals } from "@std/assert";
+import {
+  count_min_button_presses,
+  count_min_button_presses_joltage,
+  read_machine_manuals,
+} from "../exercises/day_10.ts";
+
+Deno.test("Day 10 - A", async () => {
+  const manual_list = await read_machine_manuals(
+    "src/exercises/assets/day_10_test_input.txt",
+  );
+  const result = count_min_button_presses(manual_list);
+  assertEquals(result, 7);
+});
+
+Deno.test("Day 10 - B", async () => {
+  const manual_list = await read_machine_manuals(
+    "src/exercises/assets/day_10_test_input.txt",
+  );
+  const result = count_min_button_presses_joltage(manual_list);
+  assertEquals(result, 33);
+});

src/__tests__/day_11_test.ts

@@ -0,0 +1,10 @@
+import { assertEquals } from "@std/assert";
+import { count_all_out_paths, read_device_list } from "../exercises/day_11.ts";
+
+Deno.test("Day 11 - A", async () => {
+  const input_list = await read_device_list(
+    "src/exercises/assets/day_11_test_input.txt",
+  );
+  const result = count_all_out_paths(input_list, "you");
+  assertEquals(result, 5);
+});

src/__tests__/day_12_test.ts

@@ -0,0 +1,7 @@
+import { read_situation_summary } from "../exercises/day_12.ts";
+
+Deno.test("Day 12 - A", async () => {
+  const summary = await read_situation_summary(
+    "src/exercises/assets/day_12_test_input.txt",
+  );
+});

src/__tests__/day_8_test.ts

@@ -1,2 +1,22 @@
+import { assertEquals } from "@std/assert";
+import {
+  get_last_pairing_mul,
+  get_three_largest_pairings_mul,
+  read_junction_box_3d_positions,
+} from "../exercises/day_8.ts";
+
 Deno.test("Day 8 - A", async () => {
+  const junction_boxes_coords = await read_junction_box_3d_positions(
+    "src/exercises/assets/day_8_test_input.txt",
+  );
+  const result = get_three_largest_pairings_mul(junction_boxes_coords, 10);
+  assertEquals(result, 40);
+});
+
+Deno.test("Day 8 - B", async () => {
+  const junction_boxes_coords = await read_junction_box_3d_positions(
+    "src/exercises/assets/day_8_test_input.txt",
+  );
+  const result = get_last_pairing_mul(junction_boxes_coords);
+  assertEquals(result, 25272);
 });

src/__tests__/day_9_test.ts

@@ -0,0 +1,22 @@
+import { assertEquals } from "@std/assert";
+import {
+  get_largest_area,
+  get_largest_green_area,
+  read_tile_floor,
+} from "../exercises/day_9.ts";
+
+Deno.test("Day 9 - A", async () => {
+  const floor = await read_tile_floor(
+    "src/exercises/assets/day_9_test_input.txt",
+  );
+  const result = get_largest_area(floor);
+  assertEquals(result, 50);
+});
+
+Deno.test("Day 9 - B", async () => {
+  const floor = await read_tile_floor(
+    "src/exercises/assets/day_9_test_input.txt",
+  );
+  const result = get_largest_green_area(floor);
+  assertEquals(result, 24);
+});

src/exercises/assets/day_10_input.txt

@@ -0,0 +1,177 @@
+[...#...] (0,2,3,6) (0,1,4,6) (1,3,4,5) (1,2,4,6) (0,2,3,4,5) (2,3,6) (1,2) (2,3,4,5,6) {37,24,84,71,44,32,71}
+[...##.] (0,3,4) (0,1,2,5) (0,1,3,4,5) (3,4) {53,34,17,42,42,34}
+[###.] (1,3) (0,1,2) {4,13,4,9}
+[.#.....] (0,1,6) (0,2,4) (1,3,4,6) (0,1,3,5) (4,5) {219,37,194,30,211,23,19}
+[...##] (1,2) (0,2,3) (0,3) (1,3) (2,3,4) {10,20,23,37,14}
+[#.##] (1,3) (2) (0,1,2) (2,3) {16,26,38,24}
+[#...] (1,3) (0,1) (0,3) (1) (2,3) {2,13,11,15}
+[.###.#.] (0,3,6) (0,1,2,5,6) (1,2,3,4,5) (0,1,2,3,4,5) (0,1,4,5) (0,4,6) {76,41,23,27,48,41,50}
+[#...#..###] (2,3,5,6,7,8,9) (0,4,6,7,8,9) (1,7,8) (0,1,2,8) (0,1,2,3,4,5,6,9) (0,2,3,4,5,7) (1,6,8) (1,6,9) {56,71,48,29,37,29,50,54,76,31}
+[####...] (0,1,2,3,4,6) (1,2,4) (1,3,5) (0,2,5) (4,6) (0,1,4,5,6) (3,5,6) (3) (0,1,2,5) {32,56,31,49,53,50,48}
+[#...#.##] (0,4,6,7) (0,3,5,6) (0,1,3,4) (0,1,2,5,6,7) (0,1,2,5,7) (0,2,3,4,5,6) {202,164,169,27,19,189,185,175}
+[##....#.#] (2,3,8) (3,4,7) (1) (1,2,3,5,6,8) (5,8) (0,1,5,6,8) (4,6,7,8) (0,3,4,5,7,8) {15,17,16,20,15,21,27,15,45}
+[##.#] (0,1,2) (0,1) (1,3) (2,3) (0,2) {176,12,167,3}
+[....#....#] (0,3,6) (1,3,4) (3,4,5,9) (0,1,3,5,6,7,8,9) (1,2,3,4,6,8,9) (1,2,3,4,6,7,8,9) (2,5) (4,5,6,7) {19,29,5,35,36,44,41,38,19,23}
+[####.##] (2,4) (0,1,6) (0,1,2,3,6) (1,2,4) (0,2,4,5,6) {36,207,217,13,204,13,36}
+[#.#..##.] (0,1,2,3,4,5) (0,1,6,7) (5,7) (2,3,5,7) (2) (0,1,4) (2,3,4) (4,5) (0,2,3,4,5,7) {62,44,46,37,54,48,19,45}
+[#.#.#.] (0,2,4) (1,3,4,5) (2) (1,2,3,4,5) {2,21,31,21,23,21}
+[#...##..#] (0,3,4,7,8) (0,1,2,3,4,5,7) (2,3,4,6,7,8) (4,6,7) (6,7) (0,1,2,3,4,5,8) (2,4,5,6,7) (1,2,4,5,6) {46,38,60,60,78,46,48,75,41}
+[..##.##] (2,4) (3,4) (2,4,5) (2,3,5,6) (0,1,2,3,6) (0,1,6) {32,32,57,38,49,24,37}
+[####.####.] (0,1,2,3,5,6,7,8) (0,1,3,4,6,8) (1,3) (0,1,3,4,5,6,7) (0,2,3,4,5,8) (0,3,4,5) (2,7) (1,3,4,7,8,9) (0,1,2,4,6,9) (0,1,2,4,5,6,7,8,9) {48,51,33,56,55,42,32,53,36,25}
+[#.....] (0,1,2,4,5) (0,1,3,4) (1,2,3) (3,4,5) (0,3,4) (0,2,4,5) {56,38,35,48,73,47}
+[#.###] (0,1,2) (0,1,3) (0,2,3) (0,2,3,4) (2,3,4) {24,14,24,24,16}
+[#.##.#..##] (1,2,6,7,8) (0,1,2,4,5,6,8,9) (0,1,2,3,5,6,7,8,9) (0,1,2,3,6,7,8,9) (0,2,4,8) (0,1,2,3,4,5,6,7,9) (2,3,4,7,8) (0,3,4,5,7,8) {94,71,110,75,83,57,71,84,112,62}
+[###..####] (2,3) (3,4,5,7,8) (3,4) (1,4) (2,3,4,5,6,7,8) (2,3,4,6,7,8) (0,1,3,5,7) (0,3,5,6,7) (1,3,5,6,7,8) (0,1,2,4,5,7,8) (1,2,5,8) {44,61,49,85,75,93,48,89,72}
+[.#..#.] (0,2) (5) (0,2,3,5) (2,4,5) (1,4,5) (1,4) (0,2,3) (1,2,5) {25,167,41,18,161,196}
+[#.##...] (0,4,5,6) (0,1,2,3,4,5) (3,5) (0,2,3,5,6) (0,3,4,5) (0,1) (2,3,4,5,6) (3,4,6) (0,4,6) {68,22,57,101,79,92,63}
+[.###....#] (2) (0,3,7,8) (0,7,8) (1,8) (2,6,8) (0,3,5,6) (0,1,2,4,7) {151,19,28,36,14,20,34,131,136}
+[######.] (1,3,5) (2,3,4,6) (2,4,5,6) (1,5,6) (0,1,3,5,6) (3,4) (0,1,5) (3,4,5) (0,1,2,3,5) {29,58,119,29,119,169,131}
+[#.###.###] (1,3,5) (0,2,3,4,6,8) (0,2,3,4,5,6) (1,3,4,6,7,8) (1,2,4,5,6,7) (0,1,4,6,7) (0,3,4,5,7,8) (2,5) (1,2,3,4,6,7,8) (0,2,3,4,6,7,8) (3,5) {53,44,74,90,86,78,69,59,52}
+[..#.#.#] (0,1,3,4,5,6) (1,2,4) (0,3,4) (1,6) (1,3,4,6) {31,59,13,44,57,18,46}
+[...#..] (2,3,4,5) (1,2,4) (0,4) (1,2,3,4,5) (1,4) (2) (1,3,5) (0,4,5) {35,28,33,17,76,33}
+[...##...##] (0,1,2,3,4,6,7,8,9) (2,3,4,5) (0,1,2,4,5,6,7,8) (0,3,5,6,7,8,9) (3,8,9) (0,2,3,4,9) (1,3,4,5,6,7,8,9) (0,1,5,6,7,8,9) (0,2,3,5,6,7) (5,8) (4,7) (0,1,7,8) {241,49,53,252,65,240,238,246,264,251}
+[.##..#] (0,2,3,5) (0) (0,1,3) (1,2,4) (1,3) (0,1,2,4) {32,23,12,15,10,2}
+[#####....#] (0,1,4,5,6,7,9) (1,2,3,9) (0,2,3,4,5,6,7,9) (2,4,5,6,8,9) (1,3,5,8) (0,2,3,4,6,7,8,9) (2,3,4,6,8,9) (2,3,8,9) (0,1,2,4,6,7,8,9) (3,5,8,9) (1,2,3,4,5,7,8,9) {39,52,92,86,82,78,73,48,110,114}
+[######.##.] (2,3,4,5,6,7,8,9) (2,3,4,6,8) (7,8) (7) (3,7,9) (0,1,2,3,5,7,8) (6,7) (0,1,3,5,7,9) (2,4,5,6,9) (7,9) (0,1,2,4,6) (0,2,3,4,7,8) {32,13,71,65,69,47,69,88,54,62}
+[.###......] (1,2,3) (1,2,5,7,9) (1,4,8,9) (2,3,4,5) (0,2,4,5,8) (2,4,8) (0,1,4,6,7,8) (0,6,9) {19,33,37,14,44,8,16,3,41,36}
+[.#..#] (1,3) (0) (1,2,3,4) (3,4) (1,2,3) {11,26,22,42,33}
+[.##..#] (2,3) (0,1,3,4) (1,3,4) (1,2,5) {20,33,9,24,24,9}
+[##..##.] (1,5,6) (0,1,2,3) (0,5,6) (0,1,2,4) (2,3,4,5,6) (0,2,4,5) {19,19,20,19,12,33,32}
+[.####] (1,3) (0,1,3) (1,4) (1,3,4) (1,2,3,4) (0,3,4) (0,2,4) {22,50,20,39,49}
+[.#.#####] (1,5,6,7) (0,1,2,3,4,5) (1,2,5) (2,3) (2,3,4,5,6) (0,1,2,3,5,7) (0,2,3,4,5,7) (0,1,3,4,5) {58,68,63,82,57,92,34,44}
+[..###.####] (0,1,3,7,9) (1,2,4,7,8) (0,1,2,5,7) (1,3,4,5,7,8,9) (0,1,5,6,7,8,9) (0,1,3,4,6,8,9) (1,8) (3,4,9) (0,1,4,5,6) (2,4,7) (2,3,5,6,7,8,9) (0,1,2,4,5,6,9) {27,44,21,21,34,36,30,28,30,32}
+[.#.##.#..] (1,5,7,8) (0,2) (0,3,7,8) (0,1,2,4,5,6,7,8) (0,1,3,4,5,6,7) (4,5,8) (0,5,7) {46,33,31,9,33,55,17,48,58}
+[##.######.] (0,1,3,4,5,6,7,8) (1,3,5,6,7) (0,3,4,5,6,7,9) (0,2,3,5,7,9) (0,1,7,8) (0,2,8,9) (2,7,8) (0,1,2,3,5,8,9) (4,5) {177,34,28,176,152,179,160,180,35,158}
+[###..] (1,3,4) (0,4) (4) (0,2,3,4) (1,2) (2) (0,1,3) {32,22,20,19,31}
+[.#.##] (0,1,4) (3,4) (1,2,3) (1,3,4) {173,191,7,25,191}
+[#...###] (0,3,4,5,6) (0,1,3,4,5) (0,1,2,3,5) (1,3) (0,1) (0,2,3,4,6) (1,2,3) (3,4,6) (4) {34,42,16,67,64,23,31}
+[.#.#..#..#] (0,2,3,4,5,7,8,9) (0,2,3,4,6,7,8,9) (1,3,6,9) (0,5,6,8,9) (1,2,3,4,9) (1,4,5,6,7,9) (0,1,2,3,5,7) (0,1,2,9) (0,1,2,3,4,6,7,8) (3,7) (0,1,2,4,5,7,8,9) {91,77,78,80,84,69,81,89,80,108}
+[#....#.] (0,1,2) (1,4,5,6) (1,3,4,5) (2,3,5) (0,3,4,5,6) (0,2,6) (2,3,4,5,6) (1,2,3,4,5,6) {28,30,73,56,43,63,57}
+[...###..#] (1,2,4,7,8) (0,1,4,8) (0,2,3,4,5,6,7,8) (2,3,5,6,7) (1,7) (0,4,5,7) (6,8) (0,4) (0,6) {198,54,44,24,210,25,32,64,54}
+[....####] (1,3,4,5) (1,3,6) (1,4,5,7) (4,5,6,7) (0,1,3,4,5,6,7) (0,1,4,5,6,7) (0,1,2,3,5,6) {35,74,11,41,73,84,61,58}
+[...#.###.] (0,2,3,4,7,8) (2,3,5,6) (0,1,3,4,6,7,8) (0,3,4,5,7) (0,3,4,5,7,8) (0,5) (0,1,2,5,6,7) (0,1,5,6,7,8) (0,2,3,5,6,7,8) {82,41,12,50,41,62,50,70,68}
+[#....###.#] (1,2,4,5,6,7,8,9) (1,2,3,4,7) (4) (6,8,9) (0,2,3,4,6,7,9) (0,1,3,5,6) (0,3,4,5,6,8,9) (0,3,5,6,7,8,9) (2,4,7) (2,4,5,6) (4,8) (1,2,4,6,7,8,9) (2,5) {52,40,64,69,92,62,88,52,67,65}
+[#.#..#.#] (0,2) (0,2,3,4,5,7) (0,4,5,6,7) (3,4,5) (0,1,3,4,5) (0,1,2,4,6,7) (1,4) (1,2,5,7) (3,4,7) (1,3) {63,63,42,53,91,59,25,46}
+[##.###.###] (3,4,7,9) (0,2,3,4,6,7,9) (4,5,7,8,9) (0,4,5,6,7) (0,1,2,3,4,6) (0,1,3,4,5,7,8,9) (0,1,2) (3,4,5,6,7) (0,3,6,7,8,9) (0,2,3,4,5,7,9) (1,7) (0,1,2,3,4,5,7,8) (7,8) {84,63,53,88,96,67,55,104,39,48}
+[.##..##..] (0,1,2,3,4,5,7) (0,5,8) (0,1,2,5,8) (0,1,3,4,7,8) (0,1,2,4,5,6,7) (0,1) (0,1,4,5,6,7,8) (2,3,5,6,7,8) (1,2,4,5,7,8) {171,173,65,59,167,180,138,187,170}
+[.###.#..] (3,5,6,7) (3,5,7) (1,2,3,4,5,7) (0,1,3,4,5,7) (0,1,2) (0,1,3,4,6,7) (0,2,4) (0,3,4,6) {238,28,28,220,226,10,211,26}
+[..##.] (0,1,2,3) (2,3) (1,4) {11,20,21,21,9}
+[.###.#####] (0,4,5,6,7,8,9) (2,3,4,5,8,9) (1,2,4,5) (0,1,2,3,4,6,8,9) (1,2,3,5,6,7,8,9) (0,1,4,5,8,9) (0,2,3,4,5,6,7,9) (3,4,5,9) (1,2,3,4,5,6,7,8) {192,65,72,67,229,220,196,179,213,215}
+[###..#.#] (2,3,5) (1,4) (1,2,5) (0,1,2,4,5,6) (0,4,6) (3,4) (0,1,2,5) (0,2,3,4,6,7) (2,4,6,7) (0,1,2,3,5,7) {73,48,232,50,216,55,206,190}
+[.###..##] (0,1,3,4,5,6,7) (1,2,3,4,6,7) (0,3,4,5) (0,1,4,5,6) (0,2,3,4,6,7) (0,4,6,7) (2,3,6) (0,1,2,3,4,5) (0,7) (4,6) {49,29,39,54,62,33,53,27}
+[####] (1,2) (2,3) (0,1,3) (3) (2) (0,1) {18,20,22,31}
+[.......#] (0,1,3,4,5,7) (5) (0,2,3,4,5,6) (6) (2,3,4,5,7) (0,1,2,3,7) (0,2,4,6,7) (1,6) (0,1,2,4,5,6) {63,39,164,166,165,151,42,170}
+[#.#.] (1,3) (1) (1,2) (0,1,2) (0,3) (3) {25,47,27,25}
+[.###] (0,3) (2,3) (1,2,3) (1,3) {132,23,26,165}
+[..#...] (0,3,4) (2) (1,2,3,5) (0,1,3,4,5) {19,9,17,25,19,9}
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+[#..#.###.] (1,2,3) (0,2,3,4,7) (1,3,4,5,6,7,8) (0,2,4,5,6,8) (1,2,3,5,8) (0,2,4,5,6,7,8) (0,2,5,8) (0,1,2,3,4,5,7) (2,3,8) (1,3,6,7) {196,226,235,250,204,219,51,222,70}
+[...#.] (2,3) (0,2,4) (0,2,3) (1,4) (1,2,4) {37,26,61,26,43}
+[..#.#.##.#] (0,3,4,5,6,7,8,9) (0,1,2,5,6,7,8) (0,2,3,4,5,6,7,8,9) (1,2,4,7) (0,8) (5,6) (0,1,2,3,5,6,7,8) (0,1,2,3,4,5,6,7) (0,2,3,4,5,6,8,9) (1,3,6,8) (0,2,3,6,7,9) (1,2) (0,4,5,7,9) {91,200,210,76,78,74,83,76,72,48}
+[..#.] (0) (0,2) (1,2,3) (2) (1) (2,3) {32,11,50,15}
+[#.##.###..] (0,4,5,6,7,8,9) (2,3,4,5,6,7,9) (4,6,8) (0,1,3,4,6,7,8,9) (0,1,2,3,4,7) (1,2,4,8) (1,4) (0,1,2,3,4,5,6,8,9) (1,2,4,7,8) (0,2,3,5,8) (1,4,5,6,7) (1,4,9) {73,109,75,65,139,66,78,83,82,68}
+[.####.#...] (0,3,4,6,7,8) (2,9) (0,1,2,3,4,5,6,8) (1,2,3,4,5,6,8,9) (0,1,2,3,7) (0,2,3,5,8) (0,1,2,3,4,5,6,7,9) (0,1,3,4,6) (0,1,4,6,9) (0,3,4,5,6,7,8,9) {60,44,35,48,45,24,45,33,27,29}
+[.###..#] (0,1,2,3,6) (1,4) (3,6) (0,1,4,5) (1,2,4,5,6) (0,1,6) (1,2,5) (0,1,3,5) {47,80,22,28,41,41,43}
+[.##..] (2,3) (0,1,2,3) (0,3,4) (0,1,2) (2,3,4) (3,4) (4) {50,37,65,71,59}
+[.#..###.] (1,3,4) (0,1,4,5,6) (4,5) (0,1,7) (6) (1,2,3,4) (2,3,5,6) (0,3,4,5,6) {31,28,158,177,46,184,174,10}
+[#..#.#....] (0,3,4) (1,4,5,6,7,8) (1,3,4,5,7,8) (0,5,7,8) (0,1,2,3,5,8,9) (0,3,4,5,6,7,8) (0,2,4,8,9) (0,6) (2,3,5,6,7,8,9) (0,2,3,4,5,7,9) (1,2,4,5,6,7,8,9) {84,45,59,70,73,75,52,57,78,59}
+[#.#..] (1,3,4) (2,4) (0,2) (0,1,4) (2,3) (1,3) (0,4) {17,29,14,28,25}
+[#.#.#.##] (1,4,7) (0,2,5,6) (4,7) (2,3,4,6,7) (1,3,5,6) (0,2,4,6,7) {19,200,38,24,237,17,43,237}
+[..##.##...] (0,1,3,5,6,7,8,9) (0,2,4,5,6,8) (1,3,6,9) (0,1,2,3,4,5,7,8,9) (3,4,5) (2,3,4,5,9) (1,2,4,5,8) (0,2,3,7,9) (1,2,6,7,8,9) (1,2,5,9) (1,3) (1,7) {56,86,93,96,79,106,45,49,60,87}
+[.#.###] (0,5) (0,4,5) (2,3,4,5) (0,1) (0,2) {247,198,18,4,22,39}
+[##.#.] (0,2,3,4) (0,2) (0,1,2,3) (0,1,4) {53,29,33,14,25}
+[#####] (1,3,4) (0,2,3,4) (0,2) {36,15,36,31,31}
+[..###] (0,2,4) (1,2,4) (0,3) {13,5,9,9,9}
+[.#..] (0,2) (1,2,3) (0,3) (1,2) (0,1,3) {29,14,18,21}

src/exercises/assets/day_10_test_input.txt

@@ -0,0 +1,3 @@
+[.##.] (3) (1,3) (2) (2,3) (0,2) (0,1) {3,5,4,7}
+[...#.] (0,2,3,4) (2,3) (0,4) (0,1,2) (1,2,3,4) {7,5,12,7,2}
+[.###.#] (0,1,2,3,4) (0,3,4) (0,1,2,4,5) (1,2) {10,11,11,5,10,5}

src/exercises/assets/day_11_input.txt

@@ -0,0 +1,543 @@
+pnn: opd
+gyc: elv lvv
+mnx: ivr ibb
+vgu: kzj pqv
+ilm: eej qlx wgv qrg
+zgs: zuw xsc qna ere thp jmf wxk myq oip tey eva ydb izr yhm
+ifm: qlj
+cuj: out
+ocn: bvx hpb jee iad jqj bzm hig abe kng ggh oqo pzp iao hud jpk
+nme: hli
+wfq: ewj
+thc: wzt pol iee ogz
+sig: qlx wgv
+dgw: kgf xlt
+hly: wmu xku
+rbs: odx
+zvp: opd zkx xeu bhx zgs
+cki: ztj you
+itw: nya qyb eae
+onp: exe gsv
+zle: out
+qhv: pmn tut uhu
+ibt: ncx
+pum: ztj you
+tmh: hbx hsh ktr nph dcg
+vyy: krx
+ktr: grm
+ggh: ilm ang bwj
+wtb: rbs aaz
+ugk: fet
+ltn: odx ztj
+oah: out
+xcx: pqv wfq elj
+apt: out
+dac: muz fio pum qyf
+lwa: qfc eqq qoq orb
+hiv: xjx enn sie
+xvu: vze aek tjd wll
+bhx: qna mon voe vxt myq ere jmf wxk ljp yhm zuw tey nha nme thp ydb mfv ozp izr
+lmb: ltn wgp mpp
+ksl: xku wmu grm
+hns: zle nvu
+vmw: bxw
+yfn: qju
+vpl: pok
+kzj: kkj ewj
+mon: ure xhk ahv mty
+xll: vol bdk
+wmo: dca gnt
+miv: hly qhb eru mnw
+ica: msp exg thc
+prk: ssx dca dtc
+hud: psu
+oqo: tyx odi ljw
+nqe: hns
+hlr: lmm ymk xcx
+mwt: cuj apt mtq bqu
+ere: fod dxi
+wex: uhy wvp
+ogp: lhh weu
+qab: out
+exg: pol
+hvq: out
+dlf: skp dmm nci vmw
+oey: out
+mge: edd dmm skp nci
+yhm: mty dnc xhk
+pol: xgp ljd ufv ibt pcj qpe jvv yey uhx
+msp: ogz wzt
+kwv: zlt jlx
+wgp: you
+bzm: bww oby oii
+mqw: elv jhz lvv
+xyv: opd zkx bhx zgs
+vyl: pbz wmy bdk
+nya: hcb fet fsf
+tut: bxw xku sbb wmu grm
+uyz: fay jvm
+zxo: opd zkx bhx xeu
+rfp: ckl nzc msp
+jbf: vlu pss ipe
+thv: xeu
+plf: ibb sgk ivr ibw
+pmq: lex cyo
+opb: qlj
+tlr: fay uey
+uhx: vyy uqc erw
+efr: hiv zhy
+mkm: bha
+sxu: cyo exe gsv lex
+lex: rfp
+eae: hcb isb fet
+xkk: yia mwt mgs
+ywb: qfc qoq orb eqq wjp
+thp: fod dxi
+vcz: djo yqr
+voe: hli ovs yyd
+baa: azd
+oip: ovs
+iao: mqw gyc
+ehf: rdv akw
+vcu: ena
+cvo: zle oah nvu
+gft: mpp
+rrc: oah der
+tgp: out
+pzd: zgi
+myq: ovs lgq hli
+der: out
+xjx: iha tog
+bmq: mjz drr
+dtc: oey rqm
+pyp: zgi unr
+zgi: ztj
+emu: ill xfs qpb
+pfs: gsv exe cyo
+koy: msp ckl
+xml: umi nfp dpz bqi aot
+vfz: qst
+zpe: ifm brt opb
+dpz: fsf isb fet
+zhy: enn xjx
+wvp: lnf umb
+xnb: nfp aot bqi
+uvf: ibb fwe sgk
+fwe: fen yxo
+ljd: pgg gke okt
+lgq: ugk
+qpe: vyy bgp erw
+hgk: mwt
+bzq: pgs esy
+mdz: pum cge qyf muz fio
+vlm: opd bhx zgs
+odx: xfh oyz ehh iuo ord vpl drs eyt xkx baa mfl
+ufv: rho
+fen: yug kmf woh
+zbl: hud szr iao oqo pzp hig abe ggh kng bzm jqj iad jee hpb mcr ipg bvx
+yet: jhz
+lnf: xkk hgk aqi
+wmy: aak qdq
+you: drs plk eph csl wex vld ord vfz idu
+khw: skt ssx dca dtc
+ggt: nqp
+nha: zhy ite
+bpf: zle der nvu oah
+qmu: yva wtb
+pti: ilx xve vjw
+qun: vyy bgp
+tha: aot bqi dpz umi nfp
+txq: xmv zae bcr
+los: hvq nsb
+ucq: yug
+aot: fsf
+ibb: fen ucq
+eva: gnx ijp
+wgf: fet
+uxu: fkw qnc lbd
+qgw: zgs bhx zkx opd
+hdl: jnj hrx
+vze: wzt ogz iee
+wjp: iee pol qju wzt
+kuz: pzd pyp rho zqe
+vxt: hiv ite
+nld: cgq miv
+gke: dve twf
+nfp: isb fsf hcb
+brt: xvu
+ssx: oey njy
+ite: enn sie
+gsv: rfp koy ica
+xbi: bhx zkx opd
+egs: grm wmu sbb xku
+dcg: wmu bxw xku
+qyb: fsf isb hcb
+azd: swd hxc
+eim: ptq wtb yva
+jpk: aow oii oby bww
+hig: yet
+kkj: qab evn twt
+raz: nxx lps nld
+twt: out
+uqc: omz ipk mne
+vlk: gnx hdl mtr
+jlx: dcg ktr hbx
+rdj: jsa kxe nfm
+mne: odx ztj you
+ure: qth
+evn: out
+ofa: zgi
+qlx: xyv xkg jcy thv
+elj: ewj kkj pan
+pbz: vcu aak
+xfy: cgq miv vii
+yva: cki aaz
+skp: sbb wmu grm
+zgr: jbn djo
+ahv: fft
+zmp: rfu pbz wmy vol bdk
+lmm: elj kzj
+ijp: hrx jnj
+eej: xbi xkg xyv jcy thv
+vyz: lwa yyr duu
+ubk: xyg mge ufe
+hbx: bxw sbb wmu grm
+ltq: mwt yia
+xve: vxd cfr gft
+hrx: ehf
+elw: weu iml zuu lhh
+nph: wmu sbb grm xku bxw
+okt: twf mdz dac
+fpe: rho zqe
+lbs: zgr vcz
+qfc: pol iee wzt
+kcc: xmv vrk zae bcr
+dfi: qfc qoq
+war: pmn
+gnx: jnj uxp bmq hrx
+vrm: equ tfg
+grm: ggt myt pmq vyz zpe
+csl: xll
+qdq: qah los ena
+tjy: out
+yjs: wzt qju iee
+tiv: lhh iml weu
+vld: wgb uhy
+wqv: jlx tmh yeh
+rkw: wmu bxw xku
+zae: lrp
+ipe: ymk xdb
+duo: wzt ogz qju
+iml: opd
+tce: xfy lps nxx
+fod: xml xnb tha
+qrg: jcy xbi
+qhb: xku sbb wmu grm
+dde: vol bdk rfu
+qju: pcj pti qvy bjz qun rdj kju cnt huy rbj qpe
+zuu: zkx xeu bhx zgs
+ewj: evn twt tjy
+ejf: brt
+xkx: zap hhw azd
+skt: njy
+kmf: egs
+lhh: zgs xeu bhx zkx
+uqk: nfm qmu jsa eim
+mcr: sig bwj
+duu: qfc qoq wjp
+uey: qhv prl
+dve: pum cge qyf muz
+yqr: prk kvk
+qth: wgf ede pgs
+mfv: rwg umy
+abe: bww oby
+drr: akw
+mpp: ztj odx
+iha: isb
+kvk: skt gnt dtc
+huy: nfm kxe qmu jsa eim
+dmm: bxw xku sbb grm
+mgs: apt cuj
+ptq: aaz cki
+uma: cki rbs
+cyo: ica koy rfp
+yjl: xll vyl
+lrp: wzt qju iee pol ogz
+uvv: ufe dlf
+pss: xcx
+ozp: ite
+xfh: vlu qst
+nzc: ogz iee pol
+nbr: uhu pmn glj
+qrf: zkx opd zgs bhx
+mnw: bxw
+uxp: mjz
+jgp: tsx jaq ekw
+bml: rrc bpf
+idu: uhy
+psu: fkw hqn lbd
+bwj: kyw qlx wgv qrg
+eqq: pol qju
+pmn: grm sbb
+myt: ywb lwa duu
+pqv: kkj
+zkx: efr ydb mfv all izr zuw vlk tey nme thp yhm qna xsc voe vxt oip myq wxk jmf
+tfg: kgf xlt duo
+ovg: isb fsf hcb
+iad: uxu rru
+cfr: mpp
+hqn: nbo pnn zxo
+bjz: vjw xve ncx ilx
+ckl: qju iee ogz
+edd: wmu
+yeh: hbx dcg nph ktr
+djo: kvk khw rby wmo
+sbu: fsf isb fet hcb
+lvv: vlm dzr
+ftk: ifm brt bha
+fft: pgs ede esy ojl
+kgf: iee ogz wzt
+hpb: psu rru uxu
+jvv: okt pgg
+erw: omz
+lbd: snl
+jyh: exg nzc
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+uuy: nld nxx
+qpb: zgs bhx zkx
+prl: tut
+nbo: zgs xeu opd
+nfm: wtb ptq yva uma
+vjw: gft vxd
+qna: ced dxi
+uwx: der nvu
+oyz: uhy wgb
+wzt: huy jvv qpe fpe qun uqk pcj kju cnt ufv ljd rdj qvy
+pan: evn qab
+swd: ieu nqe
+dzr: opd zkx bhx zgs
+kxe: ptq yva
+jmf: rwg sys
+qpc: vrm hyu nqp
+xyg: dmm edd vmw nci
+eph: hlr ipe vlu pss
+exe: koy rfp jyh ica
+ced: tha
+ehh: vcz zgr
+blb: vrm
+szr: bwj sig
+drg: umi nfp dpz
+weu: bhx xeu zgs zkx
+sfk: qhv nbr
+ffk: isb fsf hcb
+aaz: you odx
+nxx: cgq
+iee: pcj qvy qun ufv bjz fpe
+vlu: ymk vgu xcx xdb
+bvx: tyx odi
+oii: lov xqv
+nci: sbb bxw
+kju: rho pyp ofa pzd
+pzp: yet mqw gyc
+wdd: bcr
+jhz: dzr vlm
+xlt: pol iee ogz
+bdk: qdq aak vcu
+oqz: nxx
+fzw: lhh zuu weu zvp
+krx: odx
+ieu: cvo uwx rrc bpf
+umi: fet fsf hcb
+mfl: zmp
+bww: emu
+rby: dca gnt
+qvy: nfm eim
+rfu: qdq aak
+muz: ztj you odx
+cnt: okt
+fgd: nqp hyu
+jqj: ang bwj
+wmu: ogj bon pfs txq wdd vyz kcc zpe fgd ggt mkm ftk ran sxu myt onp vrb ejf qpc pmq
+stt: xyg
+xkg: zgs bhx zkx opd
+odm: nxx lps nld
+bgp: ipk mne
+qst: xcx ymk vgu xdb lmm
+lov: qgw
+oyo: wqv iva
+uvr: ltn
+ilx: gft lmb uvr vxd
+unr: you ztj odx
+ojl: isb hcb
+vol: qdq
+jcy: opd zkx xeu bhx zgs
+sgk: yxo ucq
+ztj: vld vfz baa eyt xkx eph mfl plk iuo idu ehh vpl xfh oyz csl jbf lbs drs yjl wex
+ncx: uvr lmb gft cfr
+ipg: uxu
+qyf: ztj odx
+ipk: ztj
+mty: bzq qth
+mjz: fvj rdv
+sie: sbu iha tog
+eyt: azd zap
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+slh: uhu glj
+xqv: qrf xfs
+mll: yqr djo jbn
+ydb: xhk ure ahv dnc mty
+gnt: rqm
+all: ure mty dnc
+odi: byx hrv tsx jaq ekw
+xeu: ljp vxt myq ere jmf xsc qna izr ydb mfv eva tey vlk nme thp zuw
+tjd: ogz qju wzt
+cge: odx ztj you
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+xku: pfs txq bon mkm ftk ggt pmq sxu qpc vyz fgd
+ljp: umy rwg
+mtq: out
+rru: fkw qnc lbd
+chu: uwx bpf hns
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+xmv: yjs
+jsy: zvp lhh
+ogj: dfi
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+ovs: ffk ugk
+hcb: uyz tlr uvv ubk uvf iez mnx raz pzs tce stt uuy oqz anf rkh xud oyo plf trv
+dnc: bzq qth
+hxc: chu glu nqe
+tsx: elw ogp
+akw: hcb
+fay: prl slh
+gcl: bxw wmu sbb
+vrb: lwa ywb yyr
+jvm: qhv war
+vxd: wgp
+nvu: out
+lqw: abe szr hpb hud iad jqj
+eru: sbb
+rkh: kwv wqv
+fdb: bml ieu chu
+rwg: vti
+zqe: rpv unr
+ang: eej kyw
+yxo: yug kmf
+byx: fzw ogp elw tiv
+xgp: gke okt
+hhw: fdb swd
+xsc: hiv zhy
+xdb: elj pqv wfq
+oby: xqv
+xfs: zkx zgs bhx xeu
+aow: lov emu
+qnc: snl ecl
+zlt: dcg nph ktr hbx hsh
+opd: ljp qna xsc mon myq wxk voe oip mfv eva efr izr ozp nha tey
+woh: rkw gcl
+qlj: vze tjd
+hli: ffk ovg
+tey: hdl ijp gnx
+iez: iva wqv
+wgv: thv xyv
+uhu: xku bxw wmu sbb
+trv: uey
+elv: ass
+equ: duo xlt
+efj: wll tjd aek vze
+ufe: nci
+enn: tog iha sbu
+fet: plf tce hxn oyo xud uuy uvf uvv mnx odm tlr uyz
+wgb: zoe
+bxw: onp vrb ejf ogj qpc kcc
+rdv: fsf fet isb
+nqp: tfg equ
+glu: bpf rrc uwx hns cvo
+izr: ahv xhk dnc
+twf: pum
+ass: bhx xeu
+hrv: tiv
+yyd: ffk
+umb: ltq ope xkk
+mtr: bmq uxp
+ecl: opd zkx
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+rho: zgi unr
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+ena: hvq
+fsf: hxn pzs oyo rkh xud uuy plf
+aek: ogz qju iee
+rqm: out
+jsa: wtb yva uma
+anf: xyg dlf
+rbj: rho pyp pzd ofa
+kng: ljw jgp odi tyx
+pgs: fet
+dja: eae qyb
+lps: cgq
+omz: you ztj
+kyw: xyv xkg jcy
+yyr: qfc qoq eqq
+ede: fsf
+xud: ibw ibb fwe
+hyu: dgw
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+umy: itw dja
+yia: apt mtq cuj tgp
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+jbn: rby kvk khw prk
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+pcj: erw bgp vyy
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+qah: hvq zzs
+iuo: wvp uhy
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+qoq: iee pol wzt
+xhk: qth fft
+uhy: zoe lnf
+pzs: sfk
+pgg: twf mdz dac
+ogz: huy jvv rbj bjz qun uqk ibt kuz kju uhx rdj ljd
+hxn: ufe mge xyg
+ibw: ucq
+dca: oey njy rqm
+isb: plf trv pzs hxn anf oyo rkh xud oqz stt uuy iez uvf ubk uvv raz mnx odm uyz
+wll: wzt qju pol
+glj: bxw wmu
+jnj: ehf drr mjz
+njy: out
+tog: hcb fet fsf
+sys: dja vti
+rpv: ztj odx
+nsb: out
+zuw: mtr ijp gnx
+ymk: wfq pqv elj
+ill: zkx xeu bhx zgs
+ord: zap azd pok
+bha: efj xvu qlj
+zoe: aqi hgk
+bqu: out
+wxk: ovs
+svr: lqw ocn zbl
+jee: yet
+zzs: out
+fvj: hcb fsf fet isb
+ran: ywb dfi lwa
+tyx: ekw tsx byx
+fkw: ecl nbo snl zxo
+plk: mll zgr
+zap: fdb swd
+jaq: fzw
+ljw: tsx hrv ekw
+aqi: yia mwt
+vrk: lrp yjs yfn
+ekw: tiv jsy fzw ogp
+dxi: drg xml
+sbb: wdd kcc vyz fgd zpe ggt mkm ftk sxu ran bon ogj txq qpc pmq myt blb vrb
+hsh: xku bxw wmu sbb grm
+yey: okt

src/exercises/assets/day_11_test_input.txt

@@ -0,0 +1,10 @@
+aaa: you hhh
+you: bbb ccc
+bbb: ddd eee
+ccc: ddd eee fff
+ddd: ggg
+eee: out
+fff: out
+ggg: out
+hhh: ccc fff iii
+iii: out

src/exercises/assets/day_12_test_input.txt

@@ -0,0 +1,33 @@
+0:
+###
+##.
+##.
+
+1:
+###
+##.
+.##
+
+2:
+.##
+###
+##.
+
+3:
+##.
+###
+##.
+
+4:
+###
+#..
+###
+
+5:
+###
+.#.
+###
+
+4x4: 0 0 0 0 2 0
+12x5: 1 0 1 0 2 2
+12x5: 1 0 1 0 3 2

src/exercises/assets/day_9_input.txt

@@ -0,0 +1,496 @@
+97918,50201
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src/exercises/assets/day_9_test_input.txt

@@ -0,0 +1,8 @@
+7,1
+11,1
+11,7
+9,7
+9,5
+2,5
+2,3
+7,3

src/exercises/day_10.ts

@@ -0,0 +1,251 @@
+enum Indicator {
+  ON = "#",
+  OFF = ".",
+}
+
+type ButtonWiring = number[];
+type Joltage = number;
+
+interface MachineManual {
+  indicators: Indicator[];
+  button_wirings: ButtonWiring[];
+  joltage_requirements: Joltage[];
+}
+
+export default async function Factory() {
+  console.log("== Factory ==");
+  const manual_list = await read_machine_manuals_quick(
+    "src/exercises/assets/day_10_input.txt",
+  );
+  const min_presses = count_min_button_presses(manual_list);
+  console.log(
+    ">> Min button presses to start: ",
+    min_presses,
+  );
+  const min_joltage_presses = count_min_button_presses_joltage(manual_list);
+  console.log(
+    ">> Min button presses to function: ",
+    min_joltage_presses,
+  );
+}
+
+export function count_min_button_presses(manuals: MachineManual[]): number {
+  let total_sum = 0;
+  manuals.forEach((manual) => {
+    const wiring_list = manual.button_wirings;
+
+    let min_presses = Infinity;
+
+    for (let size = 1; size < wiring_list.length; size++) {
+      const button_combinations = make_all_combinations_of_size(
+        wiring_list,
+        size,
+      );
+      button_combinations.forEach((combination) => {
+        // Apply combination
+        let pairing_indicator = manual.indicators.map((_) => Indicator.OFF);
+        combination.forEach((b) => {
+          pairing_indicator = apply_wiring_to_indicators(
+            b,
+            pairing_indicator,
+          );
+        });
+
+        // Check if valid
+        if (pairing_indicator.join("") === manual.indicators.join("")) {
+          min_presses = combination.length;
+          return;
+        }
+      });
+
+      if (min_presses < Infinity) {
+        break;
+      }
+    }
+
+    total_sum += min_presses;
+  });
+
+  return total_sum;
+}
+
+export function count_min_button_presses_joltage(
+  manuals: MachineManual[],
+): number {
+  let total_sum = 0;
+  manuals.forEach((manual) => {
+    const wiring_list = manual.button_wirings;
+    const target_joltage = manual.joltage_requirements;
+
+    // FIXME: calc max possible size
+    const MAX_SIZE = 8;
+    const combination_list = make_all_combinations_repeating(
+      wiring_list,
+      MAX_SIZE,
+    );
+
+    let min_presses = Infinity;
+    combination_list.forEach((combination) => {
+      // Apply combinations
+      let joltage_indicator = manual.joltage_requirements.map((_) => 0);
+      combination.forEach((c, i) => {
+        for (let j = 0; j < c; j++) {
+          joltage_indicator = apply_wiring_to_joltage(
+            wiring_list[i],
+            joltage_indicator,
+          );
+        }
+      });
+      const combination_size = combination.reduce(
+        (prev, current) => current + prev,
+        0,
+      );
+      // Update manual min
+      if (
+        target_joltage.join("") === joltage_indicator.join("") &&
+        min_presses > combination_size
+      ) {
+        min_presses = combination_size;
+      }
+    });
+
+    total_sum += min_presses;
+  });
+
+  return total_sum;
+}
+
+function apply_wiring_to_indicators(
+  wiring: ButtonWiring,
+  indicator: Indicator[],
+): Indicator[] {
+  return indicator.map((w, i) =>
+    wiring.includes(i) ? w === Indicator.ON ? Indicator.OFF : Indicator.ON : w
+  );
+}
+
+function apply_wiring_to_joltage(
+  wiring: ButtonWiring,
+  joltage: Joltage[],
+): Joltage[] {
+  return joltage.map((j, i) => wiring.includes(i) ? j + 1 : j);
+}
+
+function make_all_combinations_of_size<T extends unknown[]>(
+  list: T,
+  size: number,
+): T[] {
+  const binary_cap = Math.pow(2, list.length);
+
+  const result_list: T[] = [];
+
+  for (let i = 0; i < binary_cap; i++) {
+    const combination = i.toString(2).padStart(list.length, "0").split("");
+
+    if (
+      combination.reduce((sum, n) => sum + (n === "1" ? 1 : 0), 0) !== size
+    ) {
+      continue;
+    }
+
+    const next_l = list.map((l, i) => combination[i] === "1" ? l : null).filter(
+      (l) => l !== null,
+    );
+    result_list.push(next_l as T);
+  }
+
+  return result_list;
+}
+
+function make_all_combinations_repeating<T extends unknown[]>(
+  list: T,
+  max_repetitions: number,
+): number[][] {
+  const binary_base = max_repetitions + 1;
+  const binary_cap = Math.pow(binary_base, list.length);
+
+  const result_list: number[][] = [];
+
+  for (let i = 0; i < binary_cap; i++) {
+    const combination = i.toString(binary_base).padStart(list.length, "0")
+      .split("");
+
+    result_list.push(combination.map((c) => parseInt(c, binary_base)));
+  }
+
+  return result_list;
+}
+
+export async function read_machine_manuals(
+  path: string,
+): Promise<MachineManual[]> {
+  const line_regex = /\[([.#]+)\] (.*)+ \{(.*)\}/g;
+  const input_txt = await Deno.readTextFile(path);
+  const lines = input_txt.split("\n");
+
+  const manual_list: MachineManual[] = lines.map((line) => {
+    const matched_line = line.matchAll(line_regex)?.toArray()?.[0];
+    if (matched_line && matched_line.length > 3) {
+      const indicators = matched_line[1].toString().split("").map((ch) =>
+        ch === Indicator.ON ? Indicator.ON : Indicator.OFF
+      );
+      const buttons = matched_line[2].split(" ").map((b) =>
+        b.replaceAll("(", "").replaceAll(")", "").split(",").map((n) =>
+          parseInt(n)
+        )
+      );
+      const joltages = matched_line[3].split(",").map((j) => parseInt(j));
+      return {
+        indicators,
+        button_wirings: buttons,
+        joltage_requirements: joltages,
+      };
+    }
+    return null;
+  }).filter((v) => v !== null);
+
+  return manual_list;
+}
+
+export async function read_machine_manuals_quick(
+  path: string,
+): Promise<MachineManual[]> {
+  const input_txt = await Deno.readTextFile(path);
+  const lines = input_txt.split("\n");
+
+  const manual_list: MachineManual[] = [];
+
+  lines.forEach((line, line_i) => {
+    const manual: MachineManual = {
+      indicators: [],
+      button_wirings: [],
+      joltage_requirements: [],
+    };
+    line.split(" ").forEach((element) => {
+      if (element.includes("[")) {
+        manual.indicators = element.replaceAll("[", "").replaceAll("]", "")
+          .split("").map((e) => e as Indicator);
+      } else if (element.includes("{")) {
+        manual.joltage_requirements = element.replaceAll("{", "").replaceAll(
+          "}",
+          "",
+        ).split(",").map((e) => parseInt(e));
+      } else if (element.includes("(")) {
+        manual.button_wirings.push(
+          element.replaceAll("(", "").replaceAll(")", "").split(",").map((e) =>
+            parseInt(e)
+          ),
+        );
+      }
+    });
+
+    if (
+      manual.button_wirings.length > 0 &&
+      manual.joltage_requirements.length > 0 && manual.indicators.length > 0
+    ) {
+      manual_list.push(manual);
+    }
+  });
+
+  return manual_list;
+}

src/exercises/day_11.ts

@@ -0,0 +1,81 @@
+const INIT = "you";
+const END = "out";
+type Device = {
+  name: string;
+  output_list: string[];
+};
+
+export default async function Reactor() {
+  const input_list = await read_device_list(
+    "src/exercises/assets/day_11_input.txt",
+  );
+  const path_count = count_all_out_paths(input_list, "you");
+  console.log(">> The number of paths is: ", path_count);
+}
+
+export function count_all_out_paths(list: Device[], init: string): number {
+  let total = 0;
+  const current_device = list.find((d) => d.name === init);
+
+  // Default exits
+  // NOTE: how to avoid circular connections
+  if (!current_device) {
+    return 0;
+  }
+  if (current_device.output_list.length < 1) {
+    return 0;
+  }
+  if (current_device.output_list.includes(END)) {
+    return 1;
+  }
+
+  current_device.output_list.forEach((output) => {
+    total += count_all_out_paths(list, output);
+  });
+
+  return total;
+}
+
+// const REQUIREMENT_1 = "fft";
+// const REQUIREMENT_2 = "dac";
+// export function find_all_out_complex_paths(
+//   list: Device[],
+//   init: string,
+//   path: string[],
+// ): string[][] {
+//   let total = 0;
+//   const current_device = list.find((d) => d.name === init);
+//
+//   // Default exits
+//   // NOTE: how to avoid circular connections
+//   if (!current_device) {
+//     return [];
+//   }
+//   if (current_device.output_list.length < 1) {
+//     return 0;
+//   }
+//   if (current_device.output_list.includes(END)) {
+//     return 1;
+//   }
+//
+//   current_device.output_list.forEach((output) => {
+//     total += count_all_out_paths(list, output);
+//   });
+//
+//   return total;
+// }
+
+export async function read_device_list(path: string): Promise<Device[]> {
+  const txt_file = await Deno.readTextFile(path);
+  const raw_device_list = txt_file.split("\n");
+
+  return raw_device_list.filter((d) => !!d).map((device) => {
+    const [name, raw_outputs] = device.split(": ");
+    const output_list = raw_outputs.split(" ");
+    const formatted_device: Device = {
+      name,
+      output_list,
+    };
+    return formatted_device;
+  });
+}

src/exercises/day_12.ts

@@ -0,0 +1,88 @@
+enum Point {
+  FILLED = "#",
+  EMPTY = ".",
+}
+
+type Present = Point[][];
+type Region = {
+  width: number;
+  height: number;
+};
+interface Tree {
+  region: Region;
+  presents: number[];
+}
+
+interface SituationSummary {
+  presents: Present[];
+  trees: Tree[];
+}
+
+export default async function ChristmasTreeFarm() {
+}
+
+function do_presents_fit(tree: Tree, presents: Present[]): boolean {
+}
+
+function do_present_pair_fit(tree: Tree, p_a: Present, p_b: Present): boolean {
+}
+
+function rotate_present_90_deg(present: Present): Present {
+}
+
+function flip_present_horizontal(present: Present): Present {
+}
+
+function flip_present_vertical(present: Present): Present {
+}
+
+export async function read_situation_summary(
+  path: string,
+): Promise<SituationSummary> {
+  const txt_input = await Deno.readTextFile(path);
+  // NOTE: should be done with splits to avoid performance issues on final sample
+  const block_list = txt_input.split("\n\n");
+
+  const present_list: Present[] = [];
+  const tree_list: Tree[] = [];
+
+  block_list.forEach((block) => {
+    if (block.includes("x")) {
+      // Tree
+      const raw_trees = block.split("\n");
+      raw_trees.forEach((t) => {
+        if (!t || t.length < 1) {
+          return;
+        }
+        const [raw_region, raw_presents] = t.split(": ");
+        const region: Tree["region"] = {
+          width: parseInt(raw_region.split("x")[0]),
+          height: parseInt(raw_region.split("x")[1]),
+        };
+        const presents: Tree["presents"] = raw_presents.split(" ").map((p) => {
+          const p_n = parseInt(p);
+          if (p_n === p_n) {
+            return p_n;
+          }
+          return undefined;
+        }).filter((p) => p !== undefined);
+
+        tree_list.push({ region, presents });
+      });
+    } else {
+      // Present
+      const raw_present = block.split("\n").slice(1);
+      const present: Present = raw_present.map((line) =>
+        line.split("").map((p) =>
+          p === Point.FILLED ? Point.FILLED : Point.EMPTY
+        )
+      );
+      present_list.push(present);
+    }
+  });
+
+  return {
+    presents: present_list,
+    trees: tree_list,
+  };
+}

src/exercises/day_8.ts

@@ -12,6 +12,145 @@ export default async function Playground() {
     ">> Three largest pairings mul: ",
     get_three_largest_pairings_mul(junction_boxes_coords, 1000),
   );
+  console.log(
+    ">> Last pairing mul: ",
+    get_last_pairing_mul(junction_boxes_coords),
+  );
+}
+
+export function get_three_largest_pairings_mul(
+  box_list: Coordinate[],
+  max_pairings: number,
+): number {
+  const pairing_list = generate_n_shortest_pairings(box_list, max_pairings)
+    .sort((a, b) => b.length - a.length);
+  let total = 1;
+  for (let i = 0; i < 3; i++) {
+    total *= pairing_list[i].length;
+  }
+
+  return total;
+}
+
+export function get_last_pairing_mul(box_list: Coordinate[]): number {
+  const last_pairing = get_last_pairing_circuit(box_list);
+  if (last_pairing) {
+    return box_list[last_pairing.a].x * box_list[last_pairing.b].x;
+  }
+  return 0;
+}
+
+interface DistancePairing {
+  a: number;
+  b: number;
+  distance: number;
+}
+
+function generate_n_shortest_distances(
+  box_list: Coordinate[],
+  n: number,
+  initial_distances?: DistancePairing[],
+): DistancePairing[] {
+  const distances: DistancePairing[] = initial_distances ?? [];
+  for (let i = 0; i < n; i++) {
+    const shortest_distance: { distance: number; pair_index: number[] } = {
+      distance: Infinity, // Dirty, but it's late
+      pair_index: [],
+    };
+    box_list.forEach((box, box_index) => {
+      for (let next_i = box_index + 1; next_i < box_list.length; next_i++) {
+        const next_box = box_list[next_i];
+        const next_distance = calc_distance(box, next_box);
+
+        if (
+          next_distance < shortest_distance.distance &&
+          !distances.some((d) =>
+            (d.a === box_index && d.b === next_i) ||
+            (d.b === box_index && d.a === next_i)
+          )
+        ) {
+          shortest_distance.distance = next_distance;
+          shortest_distance.pair_index = [box_index, next_i];
+        }
+      }
+    });
+    distances.push({
+      a: shortest_distance.pair_index[0],
+      b: shortest_distance.pair_index[1],
+      distance: shortest_distance.distance,
+    });
+  }
+
+  return distances;
+}
+
+function generate_n_shortest_pairings(
+  box_list: Coordinate[],
+  max_pairings: number,
+): number[][] {
+  const distance_list = generate_n_shortest_distances(box_list, max_pairings);
+  const circuits: number[][] = box_list.map((_, i) => [i]);
+
+  distance_list.forEach((distance) => {
+    const a = circuits.find((c) => c.includes(distance.a));
+    const b = circuits.find((c) => c.includes(distance.b));
+
+    if (a?.length && b?.length && a !== b) {
+      const to_empty_index = circuits.findIndex((c) => c.includes(distance.b));
+      b.forEach((x) => a.push(x));
+      circuits[to_empty_index] = [];
+    }
+  });
+
+  return circuits;
+}
+
+function get_last_pairing_circuit(
+  box_list: Coordinate[],
+): DistancePairing | undefined {
+  const INCREMENT = 10; // NOTE: to adjust computation cost, since the solution is inefficient
+  const circuits: number[][] = box_list.map((_, i) => [i]);
+
+  const is_done = (c: number[][]): boolean => {
+    return c.reduce((prev, current) => {
+        if (current.length > 0) {
+          return prev + 1;
+        }
+        return prev;
+      }, 0) > 1
+      ? false
+      : true;
+  };
+
+  let last_pairing: DistancePairing | undefined;
+
+  let distance_list = generate_n_shortest_distances(box_list, INCREMENT);
+  while (!is_done(circuits)) {
+    distance_list = generate_n_shortest_distances(
+      box_list,
+      INCREMENT,
+      distance_list,
+    );
+    distance_list.forEach((distance) => {
+      const a = circuits.find((c) => c.includes(distance.a));
+      const b = circuits.find((c) => c.includes(distance.b));
+
+      if (a?.length && b?.length && a !== b) {
+        last_pairing = {
+          a: distance.a,
+          b: distance.b,
+          distance: distance.distance,
+        };
+        const to_empty_index = circuits.findIndex((c) =>
+          c.includes(distance.b)
+        );
+        b.forEach((x) => a.push(x));
+        circuits[to_empty_index] = [];
+      }
+    });
+  }
+
+  return last_pairing;
 }
 
 function calc_distance(a: Coordinate, b: Coordinate): number {

src/exercises/day_9.ts

@@ -0,0 +1,206 @@
+interface Coordinate {
+  x: number;
+  y: number;
+}
+
+interface Floor {
+  width: number; // x
+  length: number; // y
+  red_tiles: Coordinate[];
+}
+
+export default async function MovieTheater() {
+  const floor = await read_tile_floor(
+    "src/exercises/assets/day_9_input.txt",
+  );
+  console.log(">> Largest red-tile area: ", get_largest_area(floor));
+  console.log(
+    ">> Largest red-green-tile area: ",
+    get_largest_green_area(floor),
+  );
+}
+
+export function get_largest_area(floor: Floor): number {
+  let largest_area: number = 0;
+  floor.red_tiles.forEach((tile, tile_i) => {
+    for (
+      let inner_i = tile_i + 1;
+      inner_i < floor.red_tiles.length;
+      inner_i++
+    ) {
+      const inner_tile = floor.red_tiles[inner_i];
+      const height = calc_distance({ x: tile.x, y: tile.y }, {
+        x: tile.x,
+        y: inner_tile.y,
+      });
+      const width = calc_distance({ x: tile.x, y: tile.y }, {
+        x: inner_tile.x,
+        y: tile.y,
+      });
+      const new_area = (width + 1) * (height + 1); // NOTE: +1 to count  also the outer tiles
+      if (new_area > largest_area) {
+        largest_area = new_area;
+      }
+    }
+  });
+
+  return largest_area;
+}
+
+export function get_largest_green_area(floor: Floor): number {
+  let largest_area: number = 0;
+  floor.red_tiles.forEach((tile, tile_i) => {
+    for (
+      let inner_i = tile_i + 1;
+      inner_i < floor.red_tiles.length;
+      inner_i++
+    ) {
+      const inner_tile = floor.red_tiles[inner_i];
+      if (is_area_red_green(floor, tile, inner_tile)) {
+        const height = calc_distance({ x: tile.x, y: tile.y }, {
+          x: tile.x,
+          y: inner_tile.y,
+        });
+        const width = calc_distance({ x: tile.x, y: tile.y }, {
+          x: inner_tile.x,
+          y: tile.y,
+        });
+        const new_area = (width + 1) * (height + 1); // NOTE: +1 to count  also the outer tiles
+        if (new_area > largest_area) {
+          largest_area = new_area;
+        }
+      }
+    }
+  });
+
+  return largest_area;
+}
+
+function is_area_red_green(
+  floor: Floor,
+  a: Coordinate,
+  b: Coordinate,
+): boolean {
+  const max_x = Math.max(a.x, b.x);
+  const max_y = Math.max(a.y, b.y);
+  const min_x = Math.min(a.x, b.x);
+  const min_y = Math.min(a.y, b.y);
+
+  const tl_corner: Coordinate = { x: min_x, y: min_y };
+  const tr_corner: Coordinate = { x: max_x, y: min_y };
+  const bl_corner: Coordinate = { x: min_x, y: max_y };
+  const br_corner: Coordinate = { x: max_x, y: max_y };
+
+  // NOTE: need to check exact pairs, so they create a line somehow
+  //  - Every corner is surrounded
+  //  - Every surround must form a line
+  // old: Every corner needs to be surrounded
+  // Error 1: 4560365591
+  // Error 2: 248032161
+  // Error 3: 4638219675
+  const { red_tiles: tiles } = floor;
+
+  let first_verify = false;
+  if (
+    tl_corner.x === a.x && tl_corner.y === a.y ||
+    tl_corner.x === b.x && tl_corner.y === b.y
+  ) {
+    first_verify = tiles.some((tile) =>
+      tile.x === tl_corner.x && tile.y >= max_y ||
+      tile.x <= min_x && tile.y === max_y
+    ) || tiles.some((tile) =>
+      tile.x <= min_x && tile.y <= max_y && tiles.some((tile_2) =>
+        tile_2.y >= max_y && tile_2.x === tile.x
+      )
+    ) || tiles.some((tile) =>
+      tile.y >= max_y && tile.x <= min_x && tiles.some((tile_2) =>
+        tile_2.x >= min_x && tile_2.y === tile.y
+      )
+    );
+  } else if (
+    tr_corner.x === a.x && tr_corner.y === a.y ||
+    tr_corner.x === b.x && tr_corner.y === b.y
+  ) {
+    first_verify = tiles.some((tile) =>
+      tile.x === tr_corner.x && tile.y >= max_y ||
+      tile.x >= max_x && tile.y === max_y
+    ) || tiles.some((tile) =>
+      tile.x >= max_x && tile.y <= max_y && tiles.some((tile_2) =>
+        tile_2.y >= max_y && tile_2.x === tile.x
+      )
+    ) || tiles.some((tile) =>
+      tile.y >= max_y && tile.x >= max_x && tiles.some((tile_2) =>
+        tile_2.x <= min_x && tile_2.y === tile.y
+      )
+    );
+  }
+
+  let second_verify = false;
+  if (
+    bl_corner.x === a.x && bl_corner.y === a.y ||
+    bl_corner.x === b.x && bl_corner.y === b.y
+  ) {
+    second_verify = tiles.some((tile) =>
+      tile.x === min_x && tile.y <= min_y ||
+      tile.x <= min_x && tile.y === min_y
+    ) || tiles.some((tile) =>
+      tile.x <= min_x && tile.y <= min_y && tiles.some((tile_2) =>
+        tile_2.y >= min_y && tile_2.x === tile.x
+      )
+    ) || tiles.some((tile) =>
+      tile.y <= min_y && tile.x <= min_x && tiles.some((tile_2) =>
+        tile_2.x >= min_x && tile_2.y === tile.y
+      )
+    );
+  } else if (
+    br_corner.x === a.x && br_corner.y === a.y ||
+    br_corner.x === b.x && br_corner.y === b.y
+  ) {
+    second_verify = tiles.some((tile) =>
+      tile.x === tr_corner.x && tile.y <= min_y ||
+      tile.x >= max_x && tile.y === min_y
+    ) || tiles.some((tile) =>
+      tile.x >= max_x && tile.y <= min_y && tiles.some((tile_2) =>
+        tile_2.y >= min_y && tile_2.x === tile.x
+      )
+    ) || tiles.some((tile) =>
+      tile.y <= min_y && tile.x <= max_x && tiles.some((tile_2) =>
+        tile_2.x >= max_x && tile_2.y === tile.y
+      )
+    );
+  }
+
+  return first_verify && second_verify;
+}
+
+function calc_distance(a: Coordinate, b: Coordinate): number {
+  return Math.sqrt(Math.pow(a.x - b.x, 2) + Math.pow(a.y - b.y, 2));
+}
+
+export async function read_tile_floor(path: string): Promise<Floor> {
+  const red_tile_placements_raw = await Deno.readTextFile(path);
+  const floor: Floor = { width: 0, length: 0, red_tiles: [] };
+  const red_tile_pairings = red_tile_placements_raw.split("\n");
+  let max_x = 0;
+  let max_y = 0;
+  red_tile_pairings.map((pairing) => {
+    const [x, y] = pairing.split(",");
+    const x_int = parseInt(x);
+    const y_int = parseInt(y);
+
+    if (x_int === x_int && y_int === y_int) {
+      floor.red_tiles.push({ x: x_int, y: y_int });
+
+      if (x_int > max_x) {
+        max_x = x_int;
+      }
+      if (y_int > max_y) {
+        max_y = y_int;
+      }
+    }
+  });
+  floor.width = max_x;
+  floor.length = max_y;
+
+  return floor;
+}