[20251014] PGM / Lv2 / 짝지어 제거하기 / 이강현#1116
Merged
ShinHeeEul merged 1 commit intomainfrom Oct 14, 2025
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
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
2 participants
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Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be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.
🧷 문제 링크
https://school.programmers.co.kr/learn/courses/30/lessons/12973?language=java
🧭 풀이 시간
30분
👀 체감 난이도
✏️ 문제 설명
알파벳 소문자들로 이루어진 문자열에서 같은 문자 2개가 동시에 나타나면 제거한다.
이를 반복진행했을때, 문자열이 사라지면 1, 그렇지 않으면 0을 출력.
🔍 풀이 방법
스택
스택이 비어있거나 peek와 같지 않다면 넣고 아니라면 뺀다.
⏳ 회고
정말 쉬운 문제인데, 문자열을 두개씩 처리하고 같은지 체크하고 다시 문자열만들고 이러다가 시간초과가 났다.
큐나 스택을 쓰는 알고리즘이라는게 바로 떠오르지 않아서 팰린드롬인가? 이런 생각까지 했는데, 어이가 없다.