Hello, Rifat. I guess, based on the Test Suite, that you are allowing _all_ integers, which is not what might be expected given that Fermat's Last Theorem traditionally involves natural numbers only (1, 2, 3, 4, ...). https://www.britannica.com/science/Fermats-last-theorem It might be worth mentioning in the Problem Statement. —DIV
For the test for x=1, I think the answer should be an empty vector.
x=1 makes sense if you also consider 0. Then 0^2 + 1^2 = 1
As David Verrelli pointed out, negative integers are also accepted in this problem (not only zero).
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