Clever but difficult to read

Nice way of reformating, Like!

Very clever!!!

Nice goin'

That is one line?

Same but in just one line xD

It doesn't. Either it got lucky with the random tests or the tests have been changed since this solution.

Same but with a dict xD

I ran the code and it FAILED this test:

 Testing for [1, 1, 0, 1, 1]
It should work for random inputs too: 'Yes' should equal 'No'

when the key=[1,1,1] the test flase

should join a determine

if the list length is not n*n should "No"

How this code handles non perfect square keys? I got one in my attempt