[20251130] BOJ / G5 / 이중 우선순위 큐 / 이준희#1548
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ShinHeeEul merged 3 commits intomainfrom Nov 30, 2025
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🧷 문제 링크
https://www.acmicpc.net/problem/7662
🧭 풀이 시간
30분
👀 체감 난이도
✏️ 문제 설명
우선순위가 가장 높거나 가장 낮은 수에 대해 연산할 수 있는 이중 우선순위 큐가 존재할 때
입력 또는 삭제 연산을 모두 거친 후 큐에 있는 최대값과 최소값을 구하는 문제입니다.
🔍 풀이 방법
트리맵을 사용해서 풀었습니다.
키가 숫자이고 밸류가 그 숫자의 갯수로 해서 자료구조를 유지했습니다.
트리맵은 키 기준 오름차순 정렬 되어 있기 때문에 마지막에 첫번째값, 마지막값을 출력하면 됐습니다.
⏳ 회고
트리맵을 오랜만에 사용해봤습니다.