Day 8. I wonder if this wouldn't have been a good excuse to find a Rust/SMT binding.

Cargo.lock

@@ -6,9 +6,25 @@ version = 3
 name = "advent2021"
 version = "0.1.0"
 dependencies = [
+ "itertools",
  "thiserror",
 ]
 
+[[package]]
+name = "either"
+version = "1.6.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e78d4f1cc4ae33bbfc157ed5d5a5ef3bc29227303d595861deb238fcec4e9457"
+
+[[package]]
+name = "itertools"
+version = "0.10.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a9a9d19fa1e79b6215ff29b9d6880b706147f16e9b1dbb1e4e5947b5b02bc5e3"
+dependencies = [
+ "either",
+]
+
 [[package]]
 name = "proc-macro2"
 version = "1.0.32"