Yes, it was probably that one.

Never mind. I named a function open (later renamed to isopen), which probably overrode the implementation of another function with the same name.

The current C translation of this kata gives the following error when I try to run the tests. I believe it is caused by a wrong test/library setup.

criterion: Could not initialize inheritable arena: Invalid argument

In Go, there is a pointless type MyString which is just an alias to the primitive type string. This even turned against the person who wrote tests, because instead of IsUpperCase("..."), he/she had to write MyString("...").IsUpperCase, which is longer and less convenient. I don't see anything useful in this decision.

HINT II: See https://mitpress.mit.edu/sites/default/files/sicp/full-text/book/book-Z-H-11.html#%_sec_1.2.4

This link leads to a page not found error. Please update it.

My Go code works fine, it has a time complexity of O(n^2) (which is the best I could do) and passes the basic cases but times out when trying to submit. Quite frustrating.

Edit: I optimized the code which now is O(nlogn) I think. It works and passes all the submit tests in less than 2000 ms.

The Go translation is missing the package declaration

Thanks, now it works. They must have added 1.49 recently since I remember that it wasn't even possible to change it from 1.44

On Rust, running tests works but whenever I click on Attempt it shows an error message from stderr:

error[E0061]: this function takes 2 arguments but 1 argument was supplied
   --> src/lib.rs:363:27
    |
363 |             let row = rng.gen_range(0..n);
    |                           ^^^^^^^^^ ---- supplied 1 argument
    |                           |
    |                           expected 2 arguments

error[E0061]: this function takes 2 arguments but 1 argument was supplied
   --> src/lib.rs:364:27
    |
364 |             let col = rng.gen_range(0..n);
    |                           ^^^^^^^^^ ---- supplied 1 argument
    |                           |
    |                           expected 2 arguments

error: aborting due to 2 previous errors

For more information about this error, try `rustc --explain E0061`.
error: could not compile `qualified-rust`.


NOTE: Line numbers in error messages can be incorrect due to concatenation.