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Problem: Repeated DNA Sequences

med
30 min
Explore how to identify repeated 10-letter substrings in a DNA sequence by applying the sliding window technique. This lesson guides you through understanding the problem constraints and implementing an optimized solution to handle large data efficiently.

Statement

A DNA sequence consists of a series of nucleotides, each represented by one of the characters 'A', 'C', 'G', or 'T'.

Given a string s representing a DNA sequence, find and return all 1010-letter-long substrings that appear more than once within s. The result may be returned in any order.

Constraints:

  • 11 \leq s.length 105\leq 10^5

  • s[i] is one of 'A', 'C', 'G', or 'T'

Problem
Ask
Submissions

Problem: Repeated DNA Sequences

med
30 min
Explore how to identify repeated 10-letter substrings in a DNA sequence by applying the sliding window technique. This lesson guides you through understanding the problem constraints and implementing an optimized solution to handle large data efficiently.

Statement

A DNA sequence consists of a series of nucleotides, each represented by one of the characters 'A', 'C', 'G', or 'T'.

Given a string s representing a DNA sequence, find and return all 1010-letter-long substrings that appear more than once within s. The result may be returned in any order.

Constraints:

  • 11 \leq s.length 105\leq 10^5

  • s[i] is one of 'A', 'C', 'G', or 'T'