ts some minor update HOPEFULLY wont make it run 16k times worse HOPEFULLY

src/utils/mod.rs

@@ -1 +1,15 @@
-// Intentionally left empty.
+//! rare fns that belong nowhere
+
+/// absolute dih cheese
+/// took some inspo from itertools
+pub fn product<A, B, T1, T2>(i1: T1, i2: T2) -> impl Iterator<Item = (A, B)>
+where
+    A: Clone,
+    T1: IntoIterator<Item = A>,
+    T2: IntoIterator<Item = B>,
+    T2::IntoIter: Clone,
+{
+    let i2 = i2.into_iter();
+    i1.into_iter()
+        .flat_map(move |i1i| i2.clone().map(move |i2i| (i1i.clone(), i2i)))
+}