Repeated DNA Sequences

https://leetcode.com/problems/repeated-dna-sequences/

class Solution:
    def findRepeatedDnaSequences(self, s: str) -> List[str]:
        seen, res = set(), set()

        for l in range(len(s) - 9):
            cur = s[l: l+10]
            if cur in seen:
                res.add(cur)
            else:
                seen.add(cur)
        return list(res)

10개의 substring이 set에있는지 쭉 확인하면서 given string iteration을 하면 된다.