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Post - Identifying Odd/Even without Modulus Operator

A lot of coding problems on various platforms ask about identifying if a number is odd or even. The programming languages provide a convenient module operator(%) which people usually use. However, modulus operator is expensive it involves division(successive subtraction) and it is not performant.

If the requirement is just to identify if a number is even or odd, bitwise operator AND can be used for this purpose.

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