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$ curl repovive.com/roadmaps/math-fundamentals/boolean-logic/power-of-two-implementation

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$ curl repovive.com/roadmaps/math-fundamentals/boolean-logic/power-of-two-implementation

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Power of Two - Implementation - Boolean Logic | Math Fundamentals | Repovive

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Math Fundamentals18 sections · 842 units13h total

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Power of Two - Implementation

The code

Here's the complete solution:


function isPowerOfTwo(n)
    return n > 0 and (n & (n - 1)) = 0

This runs in $O(1)$ time. The AND operator combines two boolean conditions: positive check and bit pattern check. Both must hold for the result to be true.