Leetcode 231. Power of Two

231. Power of Two

class Solution {
    public boolean isPowerOfTwo(int n) {
        if(n == 0){
            return false;
        }
        if(n == 1){
            return true;
        }

        while(n != 1){
            if(n % 2 == 0){
                n /= 2;
            }else{
                return false;
            }
        }
        return true;
    }
}