use opt-level=2

memark · memark · commit 696b4095f796 · 2022-11-26T07:09:13.000+01:00
diff --git a/2018/Cargo.toml b/2018/Cargo.toml
@@ -1,2 +1,5 @@
 [workspace]
 members = ["day-*"]
+
+[profile.dev]
+opt-level = 2
