Conversation
Contributor
|
ㄹㅈㄷ 고수네 |
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Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be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
부분수열의 합 2
🧭 풀이 시간
30분
👀 체감 난이도
✏️ 문제 설명
주어진 수열의 부분수열의 합으로
S를 만들 수 있는 경우의 수는?🔍 풀이 방법
N >= 40이라 브루트포스는 시간초과→ 왼쪽 절반과 오른쪽 절반을 나누어 부분수열의 합을 맵에다 저장
왼쪽 배열의 임의의 값 x * 오른쪽 배열의 S - x를 반복문을 이용해 모두 더해주기→ 최대
2^20 * 2^20가지의 경우가 나올 수 있으므로long으로 구해야함⏳ 회고
음 골1치고 쉬운 것 같기도..
유달리 이분탐색 태그에서 다르게 풀 수 있는 경우가 많은듯?