if $n is anything other than an integer, then $m isn't a square number, if $m isn't a square number then the solution isn't valid

How did you come to this solution?

Please could you try again and tell me if it works now?

Hi,

I've go strange error during submit:

  testRot90ClockRandom  
✘   Error: Call to undefined function transpose()
  
  testDiag1SymRandom  
✘   Error: Call to undefined function transpose()

I belive transpose() function should be from backend side, because there is no such thing in my code ;)