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Algorithms Quiz | Bit Algorithms | Question 4
Consider the following code snippet for checking whether a number is power of 2 or not.
/* Incorrect function to check if x is power of 2*/
bool isPowerOfTwo (unsigned int x)
{
return (!(x&(x-1)));
}
What is wrong with above function?
(A)
It does reverse of what is required
(B)
It works perfectly fine for all values of x.
(C)
It does not work for x = 0
(D)
It does not work for x = 1
Answer
Please comment below if you find anything wrong in the above post
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