[20251114] PGM / LV3 / 여행경로 / 강신지 #1405
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🧷 문제 링크
https://school.programmers.co.kr/learn/courses/30/lessons/43164
🧭 풀이 시간
40분
👀 체감 난이도
✏️ 문제 설명
주어진 항공권을 모두 사용해서 여행할 수 있는 경로 반환하기. 그런데 이제 ICN에서 시작하고, 가능한 경로가 2개 이상이면 알파벳 순서가 앞서는 거 반환
🔍 풀이 방법
항공권 알파벳 순으로 나열해두고 dfs+백트래킹
⏳ 회고
리스트를 배열로 바꾸는 거 모르겠어서 찾아봄 toArray(new String[0])하면 알아서 필요한 크기의 배열 만들어서 넣어준다칸다