[LeetCode] 231. 2的幂

[LeetCode] 231. 2的幂

• 解题思路：
  

python解法：

class Solution:
    def isPowerOfTwo(self, n: int) -> bool:
        return n > 0 and n & (n - 1) == 0

C++解法：

class Solution {
public:
    bool isPowerOfTwo(int n) {
        return (n > 0 && (n & (n - 1)) == 0);
    }
};