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🧷 문제 링크
https://www.acmicpc.net/problem/2842
🧭 풀이 시간
100분
👀 체감 난이도
✏️ 문제 설명
각 고도끼리의 높이차가 있고 모든 배달을 했을 때, 피로도가 가장 낮은 것을 출력하라.
🔍 풀이 방법
높이에 대해서 먼저 정렬하고, 이중 for문으로 투포인터를 실행한다. minH와 maxH를 정하고 이 높이로만 K개를 배달할 수 있을지 확인한다.
⏳ 회고
BFS보다도 다른 사고가 필요했다. 투 포인터를 좀 집중적으로 공부해야겠다. 내가 잘 못하네.