class Solution(object):
def isPowerOfFour(self, num):
"""
:type num: int
:rtype: bool
"""
return num>0 and num&num-1==0 and num&int('55555555',16)==num
class Solution(object):
def isPowerOfFour(self, num):
"""
:type num: int
:rtype: bool
"""
return num>0 and num&num-1==0 and num&int('55555555',16)==num
LeetCode 342. Power of Four Description Given an integer ...
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LeetCode题目 题目： Given an integer (signed 32 bits), write a...
本文标题：342. Power of Four
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