small thingy

day5/day5.gleam

···
         [] -> [v]
         [last, ..rest] ->
           case v {
-            #(l, r) if last.1 >= l && last.1 <= r -> [#(last.0, r), ..rest]
+            #(l, r) if last.1 >= l && last.1 < r -> [#(last.0, r), ..rest]
             #(l, _) if last.1 < l -> [v, ..acc]
             _ -> acc
           }