3的幂
- 326.3的幂
-
- 題目描述
- 思路:模拟
326.3的幂
題目描述
3的幂
思路:模拟
![](https://img.laitimes.com/img/_0nNw4CM6IyYiwiM6ICdiwiIyVGduV2YfNWawNyROBlL3cTN2MmNhRTYiRzM5IDOhZGZiRzY3MGZyIzNkZjYjV2Lc52YucWbp5GZzNmLn9Gbi1yZtl2Lc9CX6MHc0RHaiojIsJye.png)
class Solution:
def isPowerOfThree(self, n: int) -> bool:
if n <= 0:
return False
while n > 1:
if n % 3:
return False
n //= 3
return True