It looks like you can't. You can create a Range out of it, but the range is not an iterator. If you look at the Range docs[0], you'll see that it only implements Iterator where its generic type (A) implements std::iter::Step.

Going to the Step docs[1] you'll see that its only implemented by integer types and char. If Vec implemented Step, you could iterate over it.

Also, if you're referring to the "contains" guessing puzzle, you have to look at Range::contains docs to see it uses Vec's PartialOrd implementation (basically comparison), in which docs state its elements are compared lexicographically.

Usually in Rust the first thing I'll do when trying to do something very specific (iterate over a Range of Vecs) is try it at the playground (play.rust-lang.org) and/or just look at std docs.

[0] https://doc.rust-lang.org/std/ops/struct.Range.html#impl-Ite... [1] https://doc.rust-lang.org/std/iter/trait.Step.html#implement...