From 423d2bcb74df7290d2d7e8d3d4aaea278cd1e98b Mon Sep 17 00:00:00 2001
From: Nat Lasseter <user@4574.co.uk>
Date: Mon, 2 Dec 2019 12:58:09 +0000
Subject: Day 02, though it's not going to sclae whell when we add more
 instructions!

---
 day02/part1 | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)
 create mode 100755 day02/part1

(limited to 'day02/part1')

diff --git a/day02/part1 b/day02/part1
new file mode 100755
index 0000000..460b3b5
--- /dev/null
+++ b/day02/part1
@@ -0,0 +1,28 @@
+#!/usr/bin/env ruby
+
+$input = $stdin.readlines[0].strip.split(",").map(&:to_i)
+$pc = 0
+
+def handle_code
+  case $input[$pc]
+  when 1
+    $input[$input[$pc+3]] = $input[$input[$pc+1]] + $input[$input[$pc+2]]
+    return true
+  when 2
+    $input[$input[$pc+3]] = $input[$input[$pc+1]] * $input[$input[$pc+2]]
+    return true
+  when 99
+    return false
+  end
+end
+
+$input[1] = 12
+$input[2] = 2
+
+loop do
+  continue = handle_code
+  break unless continue
+  $pc += 4
+end
+
+puts $input[0]
-- 
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