Approved

There's an error with the sample test setup: https://www.codewars.com/kata/551dd1f424b7a4cdae0001f0/discuss#5f32e42fea57ff0014b62925

It unfortunately seems to be broken on my end. :-(

The sample test cases work, but the attempt results in multiple errors, indicating a missing Accumulator struct and acc_fn:

error[E0433]: failed to resolve: use of undeclared type or module `Accumulator`
   --> src/lib.rs:142:19
    |
142 |             .fold(Accumulator::default(), |mut acc, n|{
    |                   ^^^^^^^^^^^ use of undeclared type or module `Accumulator`

error[E0433]: failed to resolve: use of undeclared type or module `Accumulator`
   --> src/lib.rs:157:19
    |
157 |             .fold(Accumulator::default(), acc_fn)
    |                   ^^^^^^^^^^^ use of undeclared type or module `Accumulator`

error[E0425]: cannot find value `acc_fn` in this scope
   --> src/lib.rs:157:43
    |
157 |             .fold(Accumulator::default(), acc_fn)
    |                                           ^^^^^^ not found in this scope

error: aborting due to 3 previous errors

I have tried to patch them in based on the errors. but without much success so far.

Approved

Approved