5 files changed, 360 insertions(+), 3 deletions(-)

A input/day10.example1.txt
A input/day10.example2.txt
A input/day10.txt
M src/aoc2022.gleam
A src/aoc2022/day10.gleam

@@ 0,0 1,3 @@
+noop
+addx 3
+addx -5<
\ No newline at end of file

@@ 0,0 1,146 @@
+addx 15
+addx -11
+addx 6
+addx -3
+addx 5
+addx -1
+addx -8
+addx 13
+addx 4
+noop
+addx -1
+addx 5
+addx -1
+addx 5
+addx -1
+addx 5
+addx -1
+addx 5
+addx -1
+addx -35
+addx 1
+addx 24
+addx -19
+addx 1
+addx 16
+addx -11
+noop
+noop
+addx 21
+addx -15
+noop
+noop
+addx -3
+addx 9
+addx 1
+addx -3
+addx 8
+addx 1
+addx 5
+noop
+noop
+noop
+noop
+noop
+addx -36
+noop
+addx 1
+addx 7
+noop
+noop
+noop
+addx 2
+addx 6
+noop
+noop
+noop
+noop
+noop
+addx 1
+noop
+noop
+addx 7
+addx 1
+noop
+addx -13
+addx 13
+addx 7
+noop
+addx 1
+addx -33
+noop
+noop
+noop
+addx 2
+noop
+noop
+noop
+addx 8
+noop
+addx -1
+addx 2
+addx 1
+noop
+addx 17
+addx -9
+addx 1
+addx 1
+addx -3
+addx 11
+noop
+noop
+addx 1
+noop
+addx 1
+noop
+noop
+addx -13
+addx -19
+addx 1
+addx 3
+addx 26
+addx -30
+addx 12
+addx -1
+addx 3
+addx 1
+noop
+noop
+noop
+addx -9
+addx 18
+addx 1
+addx 2
+noop
+noop
+addx 9
+noop
+noop
+noop
+addx -1
+addx 2
+addx -37
+addx 1
+addx 3
+noop
+addx 15
+addx -21
+addx 22
+addx -6
+addx 1
+noop
+addx 2
+addx 1
+noop
+addx -10
+noop
+noop
+addx 20
+addx 1
+addx 2
+addx 2
+addx -6
+addx -11
+noop
+noop
+noop<
\ No newline at end of file

@@ 0,0 1,137 @@
+noop
+noop
+addx 5
+addx 1
+addx 10
+addx -4
+noop
+addx -1
+noop
+addx 5
+addx -5
+addx 9
+addx 2
+addx -15
+addx 18
+addx 8
+addx -2
+noop
+addx -18
+addx 21
+addx 1
+addx -37
+addx 27
+addx -24
+addx 2
+addx 5
+addx -7
+addx 26
+addx -16
+addx 2
+addx 5
+addx -15
+noop
+addx 20
+addx 2
+addx 4
+addx -3
+addx 2
+noop
+addx 3
+addx 2
+addx 5
+addx -40
+addx 2
+addx 33
+addx -30
+addx 5
+addx 5
+addx 17
+addx -19
+addx 2
+addx 5
+addx 20
+addx -16
+addx 3
+addx -2
+addx 7
+noop
+addx -2
+addx 5
+addx 2
+addx 3
+addx -2
+addx -38
+addx 5
+addx 2
+addx 1
+addx 15
+addx -8
+noop
+addx -2
+addx 4
+addx 2
+addx 4
+addx -2
+noop
+addx 6
+addx 2
+addx -1
+addx 4
+noop
+addx 1
+addx 4
+noop
+noop
+noop
+addx -37
+addx 5
+addx 2
+addx 22
+addx -17
+addx -2
+noop
+addx 3
+addx 2
+noop
+addx 3
+addx 2
+noop
+noop
+noop
+addx 5
+addx 5
+addx 2
+addx 3
+noop
+addx 2
+addx -23
+addx 2
+addx -14
+noop
+addx 29
+addx -26
+noop
+addx 8
+noop
+noop
+noop
+addx -9
+addx 11
+addx 5
+addx 2
+noop
+addx 1
+noop
+noop
+addx 5
+noop
+noop
+addx 2
+noop
+addx 3
+addx 2
+addx -2
+noop
+noop
+noop<
\ No newline at end of file

@@ 1,9 1,9 @@
 import gleam/io
-import aoc2022/day09
+import aoc2022/day10
 
 pub fn main() {
   io.print("Part 1: ")
-  io.debug(day09.part1())
+  io.debug(day10.part1())
   io.print("Part 2: ")
-  io.debug(day09.part2())
+  io.debug(day10.part2())
 }

@@ 0,0 1,71 @@
+//// --- Day 10: Cathode-Ray Tube ---
+//// https://adventofcode.com/2022/day/10
+//// Activate next instruction
+
+import aoc2022/utils
+import gleam/list
+import gleam/string
+
+type State {
+  State(idx: Int, x: Int, sum: Int)
+}
+
+pub fn part1() {
+  let state =
+    utils.read_input("day10.txt")
+    |> string.split("\n")
+    |> list.flat_map(fn(line) {
+      case line {
+        "addx " <> n -> [0, utils.parse_int(n)]
+        "noop" -> [0]
+      }
+    })
+    |> list.fold(
+      State(1, 1, 0),
+      fn(state, dx) {
+        let idx = state.idx + 1
+        let x = state.x + dx
+
+        let sum = case { idx - 20 } % 40 {
+          0 -> state.sum + x * idx
+          _ -> state.sum
+        }
+
+        State(idx, x, sum)
+      },
+    )
+
+  state.sum
+}
+
+pub fn part2() {
+  let state =
+    utils.read_input("day10.txt")
+    |> string.split("\n")
+    |> list.flat_map(fn(line) {
+      case line {
+        "addx " <> n -> [0, utils.parse_int(n)]
+        "noop" -> [0]
+      }
+    })
+    |> list.fold(
+      #(0, 1, ["#"]),
+      fn(state, dx) {
+        let idx = { state.0 + 1 } % 40
+        let x = state.1 + dx
+
+        let char = case idx >= x - 1 && idx <= x + 1 {
+          True -> "#"
+          False -> "."
+        }
+
+        #(idx, x, [char, ..state.2])
+      },
+    )
+
+  state.2
+  |> list.reverse
+  |> list.sized_chunk(40)
+  |> list.map(string.join(_, ""))
+  |> string.join("\n")
+}