they did not

How did you avoid the warning about comparing an int to size_t?

in most cases yes, but there is exceptions such as emmbeded devices with limited amount of memory. I think you need to write ur code according to the platform y're writting for

That's not a good practice

Forked, try again

Description merge conflict.

Now it makes sense.

@KacperKoban can you give an answer to this question that is not hidden(spoiler)

Ah, I get it now. The actual and expected results are flipped (see issue above) - you are returning an object instead of a string.

return is missing.

Solution is returning None, not reference.

Actual and expected are flipped in Python.

For me only Python 2.x is available (where it works fine). Did you somehow access Python 3.x?

In python i get: 'abcdetsrifabcde' should equal 'abcde<reversed object at 0x7f9e29769b90>abcde', you should wrap reversed object in a list.