Merge conflict.

Approved.

To be fair, "big" and "straightforward" are extremely subjective terms.

Yes, that's why I'd like to see input ranges always documented. When they are not, I assume that anything should work (no overflows, bogosort doesn't time out, ...), otherwise it's not clear what is expected to work and what isn't.
Also, when not everything is specified, I start thinking about it less like about competitive programming and more like about a real world task where the input range is consistent with the story.

Two #include <string_view>s missing.

The input range isn't specified and the nature of the problem suggests than the input is small.
Haskell has big numbers in the random tests, the most straightforward solution times out.

Is the reference solution correct? My solutions passed 25 tests including some big ones, so I'm not sure what could be wrong... (I can't see the spoilers.)

Strict nesting is required; no two lists can share the same maximum or minimum values.

This isn't tested consistently: an incorrect Python solution, an incorrect Haskell solution.

I think this is my first grouped solution of this complexity. I had Haskell one-liners with 5 function applications, but only a really simple inherited class in Python at the type level.

Java:

Incorrect answer for val = 289624579 and pow_ = 12 ==> expected: <2147483647> but was: <-2118184960>

-2118184960 is 2176782336 as an int, it looks correct, but there shouldn't be tests like this in the first place.

Missing edge case test with 0 arguments.

IDK, is another prime kata considered original enough these days?..

IDK if it was a joke, but there are 3 shorter ways to import.

Displays the name and ID (in the format of name (id) of the winning runner in that race if the current runner's position is not 1

the desired output is the following:
...

| runner_name  | run_id | position | race_id | win/second        |
...
| John Runner  |      4 |        3 |       2 | Second Runner (2) |

Why is it "Second Runner" for position = 3?..

Groovy, sample tests:

./src/test/groovy/fixture.groovy: 9: expecting anything but ''\n''; got it anyway @ line 9, column 75.