[yayyz] WEEK 03 solutions #1281
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ayosecu
reviewed
Apr 15, 2025
| @@ -0,0 +1,15 @@ | |||
| class Solution: | |||
| def isPalindrome(self, s: str) -> bool: | |||
| s = ''.join(filter(str.isalnum, s)).lower() | |||
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사전에 alpha-numeric 값들만 필터링을 해두는 방법도 좋은 방법 같습니다.
filter 함수를 써보지 못했는데, 적용하신 코드를 참고해서 나중에 써볼 수 있을 것 같습니다. 👍
ayosecu
reviewed
Apr 15, 2025
| def hammingWeight(self, n: int) -> int: | ||
| count = 0 | ||
| while n: | ||
| count += n & 1 |
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저는 and 연산을해서 값이 있으면 count 값을 증가시켰는데, 생각해보니 and 연산 값 자체를 더해도 되겠네요.
한 수 배우고 갑니다.
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