Day 8

1 files changed, 26 insertions, 0 deletions

diff --git a/2015/day8.exs b/2015/day8.exs
new file mode 100644
index 0000000..ecf9e79
--- /dev/null
+++ b/2015/day8.exs
@@ -0,0 +1,26 @@
+escapedList = File.stream!("inputs/day8.txt")
+
+savings =
+  Enum.map(escapedList, fn rawString ->
+    savedFromEscapes =
+      Regex.scan(~r/(\\\\|\\"|\\x[0-9a-f]{2})/, rawString, capture: :first)
+      |> Enum.map(fn [escape] -> String.length(escape) - 1 end)
+      |> Enum.sum()
+
+    2 + savedFromEscapes
+  end)
+  |> Enum.sum()
+
+IO.puts("Potential savings: #{savings}")
+
+bloat =
+  Enum.map(escapedList, fn rawString ->
+    bloatFromNewEscapes =
+      Regex.scan(~r/(\\|\")/, rawString, capture: :first)
+      |> Enum.count()
+
+    2 + bloatFromNewEscapes
+  end)
+  |> Enum.sum()
+
+IO.puts("Potential bloat: #{bloat}")