If x = 5,
y = 4*5/2 = 10
Having more than one sample question in your test suite would be helpful, Minhaj, if only to prevent "answers" like this one.
Inner product of two vectors
Right and wrong
Rotate a Matrix
Do Fast Fourier Transformation
Swap two numbers
Write a code that will follow the equation y = x * (x + x) * x.
Log of a number
Square root of a number
Corresponding letter to ASCII code.
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