You are returning wrong data type. Columns need be typeof number

Yes,now I have deal with the issue excpet,it fails dealing with odd characters like while submission

Your code passes all the tests. I'm not sure what the issue is.

We can't see your code, so we don't know either.

I don't understand for the test case "stress" ,I am getting "T" on repel as first non repeating character while here it prints "s",how come it possible?

I did select the length of name and characteristics but still its failing this test condition::
Test Failed
@@ ,id,name,legs ,arms,characteristics
+++,5 ,5 ,4 ,11 ,1
+++,4 ,5 ,3 ,19 ,1
+++,5 ,3 ,4 ,9 ,1
+++,4 ,5 ,4 ,14 ,1
+++,6 ,3 ,4 ,23 ,1
---,1 ,5 ,13377,1347,11
---,2 ,4 ,81543,745 ,19
---,3 ,5 ,566 ,3503,9
---,4 ,4 ,30983,9742,14
---,5 ,6 ,880 ,5597,23

From the description:

Your task is to make a new table where each column should contain the length of the string in the column to its right (last column should contain length of string in the first column)

You are selecting the actual values of the columns, not the length of the string in the column to the right of the current column.

Test Failed
@@ ,id,name ,legs ,arms ,characteristics
+++,5 ,5 ,5 ,11 ,1
+++,4 ,3 ,5 ,19 ,1
+++,5 ,5 ,4 ,9 ,1
+++,4 ,4 ,4 ,14 ,1
+++,6 ,5 ,3 ,23 ,1
---,1 ,Cyril ,65700,37847,big
---,2 ,Tiny ,359 ,94437,small
---,3 ,Niall ,63250,9336 ,flatulent
---,4 ,Umph ,9797 ,9410 ,idiotic
---,5 ,Martin,72028,174 ,mad

Failedexpected "Cyril" to be a kind of Fixnum,Failedexpected "big smelly" to be a kind of Fixnum,I passed all tests but when tried to submit mine 3 tests failed where 2 of them said this,what doest it mean?

Thanks

the "different" should really be bolded or italicized. Preferably both..

Besides, tttt contains four different ts and, therefore, four different letters.

unique would be a better word, IMO.

dear god..

I made same misstake, e.g.missed the specification

"a valid response word must contain four different letters"

tent contains two t and is therefore an invalid answer.