2023 Day 1 in Ruby

2023-12-01 20:03:52 -05:00
commit d00e27d271
11 changed files with 1101 additions and 0 deletions
--- a/2023/day1/p1.rb
+++ b/2023/day1/p1.rb
@@ -0,0 +1,11 @@
+res = 0
+File.foreach("./2023/day1/data") do |line|
+  first_int = -1
+  last_int = -1
+  line.each_byte do |b|
+    first_int = b - 48 if first_int == -1  and b > 47 and b < 58
+    last_int = b - 48 if b > 47 and b < 58
+  end
+  res += first_int * 10 + last_int
+end
+puts res