Coding Trainer
Repeated DNA Sequences
MediumSliding Windowk-sliding-windowk-hash-map
Problem
Repeated DNA Sequences
The DNA sequence is composed of nucleotides 'A', 'C', 'G', and 'T'.
Given a string s representing a DNA sequence, return all 10-letter-long substrings that occur more than once. You may return the answer in any order.
Example 1:
Input: s = "AAAAACCCCCAAAAACCCCCCAAAAAGGGTTT"
Output: ["AAAAACCCCC","CCCCCAAAAA"]
Example 2:
Input: s = "AAAAAAAAAAAAA"
Output: ["AAAAAAAAAA"]
Constraints:
1 <= s.length <= 10⁵s[i]is'A','C','G', or'T'