[minji-go] week 15 solutions #1657
Merged
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Jeehay28
approved these changes
Jul 11, 2025
| int len = Math.max(len1, len2); | ||
| if (len > maxLength) { | ||
| maxLength = len; | ||
| start = i - (len - 1) / 2; |
There was a problem hiding this comment.
Java에서 int 나눗셈은 소수점 이하를 그냥 잘라버리는 거였군요. JavaScript의 Math.floor()랑은 다른 개념이라 흥미롭네요. 배워갑니다!
|
|
||
| for (int right = 0; right < s.length(); right++) { | ||
| char c = s.charAt(right); | ||
| count[c - 'A']++; |
There was a problem hiding this comment.
Java는 'A' - 'A' 같은 문자 연산도 지원하네요! 와우! 👍
| * <a href="https://leetcode.com/problems/subtree-of-another-tree/">week15-1. subtree-of-another-tree</a> | ||
| * <li>Description: Given the roots of two binary trees root and subRoot, return true if there is a subtree of root with the same structure and node values of subRoot </li> | ||
| * <li>Topics: Tree, Depth-First Search, String Matching, Binary Tree, Hash Function</li> | ||
| * <li>Time Complexity: O(N*M), Runtime 2ms </li> |
There was a problem hiding this comment.
serialization 방식을 사용하면 시간 복잡도를 O(M + N)으로 줄일 수 있습니다. 한번 시도해 보시는 걸 추천드립니다.
There was a problem hiding this comment.
시간 복잡도 줄일 생각을 못했네요 :) 감사합니다!
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
답안 제출 문제
[week15]
[week8]
작성자 체크 리스트
In Review로 설정해주세요.검토자 체크 리스트
Important
본인 답안 제출 뿐만 아니라 다른 분 PR 하나 이상을 반드시 검토를 해주셔야 합니다!