1314. Power of Two

描述

Given an integer, write a function to determine if it is a power of two.

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無難度題目

class Solution {
public:
    /**
     * @param n: an integer
     * @return: if n is a power of two
     */
    bool isPowerOfTwo(int n) {
        // Write your code here
        while(n%2==0) n=n/2;
        if(n==1) return true;
        else return false;
    }
};