1 files changed, 35 insertions, 0 deletions
diff --git a/day02/part2.rb b/day02/part2.rb
new file mode 100644
index 0000000..871a332
--- /dev/null
+++ b/day02/part2.rb
@@ -0,0 +1,35 @@
+def whatplay(them, outcome)
+  case them
+  when 1
+    case outcome
+    when 0; 3
+    when 3; 1
+    when 6; 2
+    end
+  when 2
+    case outcome
+    when 0; 1
+    when 3; 2
+    when 6; 3
+    end
+  when 3
+    case outcome
+    when 0; 2
+    when 3; 3
+    when 6; 1
+    end
+  end
+end
+
+rounds = $stdin.readlines.map(&:strip).map(&:split)
+
+score = 0
+
+rounds.each do |them, outcome|
+  ti = {?A => 1, ?B => 2, ?C => 3}[them]
+  oi = {?X => 0, ?Y => 3, ?Z => 6}[outcome]
+  score += whatplay(ti, oi)
+  score += oi
+end
+
+puts score