From 5e4395eab49524f41f217f664388a170924ec933 Mon Sep 17 00:00:00 2001
From: Nguyễn Gia Phong <mcsinyx@disroot.org>
Date: Sun, 18 Dec 2022 02:28:47 +0900
Subject: [aoc/2022] Finish day 10

---
 aoc/2022/10/part-one.awk |  8 ++++++++
 aoc/2022/10/part-two.awk | 10 ++++++++++
 2 files changed, 18 insertions(+)
 create mode 100755 aoc/2022/10/part-one.awk
 create mode 100755 aoc/2022/10/part-two.awk

(limited to 'aoc')

diff --git a/aoc/2022/10/part-one.awk b/aoc/2022/10/part-one.awk
new file mode 100755
index 0000000..756464e
--- /dev/null
+++ b/aoc/2022/10/part-one.awk
@@ -0,0 +1,8 @@
+#!/usr/bin/env -S awk -f
+BEGIN { cycle = x = 1 }
+{ cycle++ }
+cycle % 40 == 20 { strength += cycle * x }
+{ x += $2 }
+/^addx/ { cycle++ }
+/^addx/ && cycle % 40 == 20 { strength += cycle * x }
+END { print strength }
diff --git a/aoc/2022/10/part-two.awk b/aoc/2022/10/part-two.awk
new file mode 100755
index 0000000..9126306
--- /dev/null
+++ b/aoc/2022/10/part-two.awk
@@ -0,0 +1,10 @@
+#!/usr/bin/env -S awk -f
+function cycle (c, x) {
+  printf x - 2 < c && c < x + 2 ? "#" : "."
+  printf c == 39 ? "\n" : ""
+  return (c + 1) % 40
+}
+BEGIN { x = 1 }
+{ c = cycle(c, x) }
+/^addx/ { c = cycle(c, x) }
+{ x += $2 }
-- 
cgit 1.4.1