LeetCode 326: Power of Three Solution
Master LeetCode problem 326 (Power of Three), a easy challenge, with our optimized solutions in Java, C++, and Python. Explore detailed explanations, test your code in our interactive editor, and prepare for coding interviews.
Problem Explanation
Explanation
To determine if a given number is a power of three, we can repeatedly divide the number by 3 until we reach 1. If at any point the number is not divisible by 3 or if we reach 1, then the original number is not a power of three. The constraints allow us to use a mathematical approach without loops or recursion.
Solution Code
public boolean isPowerOfThree(int n) {
return n > 0 && 1162261467 % n == 0;
}Try It Yourself
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How to solve LeetCode 326 (Power of Three)?
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