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This discussion was converted from issue #22 on September 15, 2026 10:44.
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Problem link
https://atcoder.jp/contests/panasonic2020/tasks/panasonic2020_d
Problem Summary
n 길이의 isomorphic 한 normal form를 전부 구하는 문제
Solution
예시에 2밖에 없어서 뭔가 애매한데 4 예시를 직접 만들어보자.
총 15개가 나오고 규칙을 찾을 수 있다.
좀더 formal하게는
이건 재귀적으로 간단하게 짤 수 있다.
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