[Leo] 2nd Week solutions #53
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dev-jonghoonpark
approved these changes
May 7, 2024
WhiteHyun
approved these changes
May 8, 2024
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| while curr: | ||
| tmp = curr.next ## save next node | ||
| curr.next = prev ## reverse next pointer to the prev | ||
| prev = curr ## update prev pointer with curr, since it's reversed now | ||
| curr = tmp ## move on to the next saved node |
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Suggested change
| while curr: | |
| tmp = curr.next ## save next node | |
| curr.next = prev ## reverse next pointer to the prev | |
| prev = curr ## update prev pointer with curr, since it's reversed now | |
| curr = tmp ## move on to the next saved node | |
| while curr: | |
| curr.next, prev, curr = prev, curr, curr.next |
tmp 사용 없이 이렇게 하는 방법도 있을 것 같아요.
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감사합니다!! 포인터 문제들은 늘 할때마다 헷갈려서 tmp 해놓은거도 있고 안해놓은거도 있고 뒤죽박죽이네요 ㅎㅎ 좀 일관성있게 작성하도록 노력해보겠습니다 😄
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오 파이썬은 temp 없이 스왑이 되는군요...!
DaleSeo
reviewed
May 9, 2024
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| return root | ||
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| ## TC: O(n), SC: O(n), avg O(logn) if the given tree is balanced |
DaleSeo
approved these changes
May 9, 2024
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I do hate Linked List