a < b is the same as b > a.

Also, map is faster than inject, so I agree that it's not the best solution.

I love this.

You have mutated the input array.

why it should be 0 ?

If performance isnt an issue this is a very clean solution, however the usage of potentially 175 counts could become cumbersome for large sets. Still this does run in O(n) which is optimal

stop, but what about - "Your points are not included in the array of your classes points. For calculating the average point you may add your point to the given array!"?

Nice! Awesome--it's fixed!

Thanks again for the cool Kata!

Works perfectly now! Thanks for the correction! Awesome Kata!

thanks!

Hi, apologies- I have been having some problems with the ruby translation- I'm not sure if my edits are always taking effect. I have made a change, could you try now and let me know if it's working? (Your issue sounds like it may have been due to editing the customers array in place, so I have accounted for this)

Wow, Thanks for your test and feedback, I've checked my random test code, the evil number 0 is the culprit, I've kill it. perhaps the testcase is right now, please help me to test it again ;-)

Thanks for the ruby version. Looks like the random test cases are buggy though (one example below).

"Test for: nums = [671059108, 671053106, 671059186, 675059106, 671029106, 71059106, 671059506, 671259106, 631059106]
✘ Expected: "7135052293105868", instead got: nil"

Some arrays are shorter than others and the key is much too long.

Thanks again!