From b68651c4f80ebd4438246b44c3efc0bcf05ec7c8 Mon Sep 17 00:00:00 2001
From: kageru <kageru@encode.moe>
Date: Sun, 1 Dec 2019 06:52:57 +0100
Subject: [PATCH] Add day 1 part 2 (awk)

---
 2019/1/day1_2.awk | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
 create mode 100644 2019/1/day1_2.awk

diff --git a/2019/1/day1_2.awk b/2019/1/day1_2.awk
new file mode 100644
index 0000000..2dbe48c
--- /dev/null
+++ b/2019/1/day1_2.awk
@@ -0,0 +1,16 @@
+#!/usr/bin/awk -f
+
+function calc_fuel(mass) {
+    return int(mass / 3) - 2;
+}
+
+{
+    c = calc_fuel($1);
+    while (c > 0) {
+        s += c;
+        c = calc_fuel(c);
+    }
+}
+END {
+    print s;
+}