[20251030] PGM / Lv2 / 스킬트리 / 이강현 #1272
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🧷 문제 링크
https://school.programmers.co.kr/learn/courses/30/lessons/49993
🧭 풀이 시간
20분
👀 체감 난이도
✏️ 문제 설명
스킬 트리가 정해짐.
스킬 찍는 경우가 여러개 주어질때 가능한 경우의 개수 출력
🔍 풀이 방법
위상 정렬
⏳ 회고
ez