Very funny Kata! Thanks to author!

you should replace "big integers" tag with "performance" tag

yes, looks ok now

Hello @dfhwze can you check it please?

Do you really want to use numeric types for this kata, why not use strings instead? That would also make the kata more suited to translate to other languages.

I managed to pass with micro-optimisations. Not sure I like the current constraints. These don't seem balanced.

Hello @ejini战神 can you check it now? Cheers

I am confused, the method signature is BigInteger, but the tests are expecting an int:

tests/Fixture.cs(14,22): error CS0266: Cannot implicitly convert type 'System.Numerics.BigInteger' to 'int'. An explicit conversion exists (are you missing a cast?)
tests/Fixture.cs(28,22): error CS0266: Cannot implicitly convert type 'System.Numerics.BigInteger' to 'int'. An explicit conversion exists (are you missing a cast?)
tests/Fixture.cs(30,18): error CS0266: Cannot implicitly convert type 'System.Numerics.BigInteger' to 'int'. An explicit conversion exists (are you missing a cast?)
tests/Fixture.cs(32,18): error CS0266: Cannot implicitly convert type 'System.Numerics.BigInteger' to 'int'. An explicit conversion exists (are you missing a cast?)

Hi @dfhwze can you check it please? Chears

fixed

Hello @Voile, can you check it?

You're still using <pre><code>. That can be replaced with triple backticks like so:

```
// Example code
```

Can you explain why you use a list, not an array? The suggestion was to keep array, only change the generic parameter type from string to BigInteger. A list is a mutable object. This kata does not require any mutation of the collection. So why did you go from array to list?