Maybe you should check arr for null value... ;-)

You simply justify yourself

but I get the Timeout error....

I got the same error! Were you able to pass the last test?

I think this is not a real problem (this is a kata for beginners) and I don't think it would be pertinent to do what you are suggesting (though I understand your point of view). It would be really tricky and I'm not sure it's feasible in clean way.

Nice kata with datetime, useful

its calculator for 8ky) bt nice for fermer

kata nice, bt very easy for me, not 7kyu bt 8kyu.

Same than HEXecutive post , as not being replied at this moment , when I look at the alternative solutions , it seems to me that your tests consider C en m being only at first and last positions : not seen in the rules ?

8ky but norm

because that is the maximum we can get from that array

why in this adjacentElementsProduct([9, 5, 10, 2, 24, -1, -48]); ==> return 50
5 * 10 ??????

nice kata, trouble with iterator

Traceback (most recent call last):
File "/runner/frameworks/python/cw-2.py", line 111, in wrapper
func()
File "main.py", line 11, in tests
Test.assert_equals(next_item(iter(range(1, 30000)), 12), 13)
File "/home/codewarrior/solution.py", line 4, in next_item
return xs[xs.index(item)+1]
AttributeError: 'range_iterator' object has no attribute 'index'