From d4fcb8a4a815ce8c888c3e06330e9cff71e3c312 Mon Sep 17 00:00:00 2001
From: mathiasmagnusson <mathias@magnusson.space>
Date: Mon, 12 Dec 2022 22:33:07 +0100
Subject: Day 10

---
 aoc22/day10/src/main.rs | 62 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 62 insertions(+)
 create mode 100644 aoc22/day10/src/main.rs

(limited to 'aoc22/day10/src/main.rs')

diff --git a/aoc22/day10/src/main.rs b/aoc22/day10/src/main.rs
new file mode 100644
index 0000000..42d6490
--- /dev/null
+++ b/aoc22/day10/src/main.rs
@@ -0,0 +1,62 @@
+fn main() {
+    let input = lib::read_input(10);
+
+    part1(&input);
+    part2(&input);
+}
+
+fn part1(input: &str) {
+    let addx = "addx ";
+
+    let mut x = 1;
+    let mut cycle = 1;
+    let mut ans = 0;
+    for line in input.lines() {
+        if line.starts_with(addx) {
+            cycle += 1;
+            if [20, 60, 100, 140, 180, 220].contains(&cycle) {
+                ans += cycle * x;
+            }
+            x += line[addx.len()..].parse::<i32>().unwrap();
+            cycle += 1;
+            if [20, 60, 100, 140, 180, 220].contains(&cycle) {
+                ans += cycle * x;
+            }
+        } else {
+            cycle += 1;
+            if [20, 60, 100, 140, 180, 220].contains(&cycle) {
+                ans += cycle * x;
+            }
+        }
+    }
+    println!("{}", ans);
+}
+
+fn part2(input: &str) {
+    let addx = "addx ";
+
+    let mut x = 1;
+    let mut cycle = 1i32;
+    let mut ans = ['.'; 40 * 6];
+    for line in input.lines() {
+        if line.starts_with(addx) {
+            if [x - 1, x, x + 1].contains(&(cycle % 40)) {
+                ans[cycle as usize - 1] = '#';
+            }
+            cycle += 1;
+            x += line[addx.len()..].parse::<i32>().unwrap();
+            if [x - 1, x, x + 1].contains(&(cycle % 40)) {
+                ans[cycle as usize - 1] = '#';
+            }
+            cycle += 1;
+        } else {
+            if [x - 1, x, x + 1].contains(&(cycle % 40)) {
+                ans[cycle as usize - 1] = '#';
+            }
+            cycle += 1;
+        }
+    }
+    for i in 0..6 {
+        println!("{}", &ans[i * 40..(i + 1) * 40].iter().collect::<String>());
+    }
+}
-- 
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