Search⌘ K
AI Features
Home
Courses
Grokking the Coding Interview Patterns in Go

Solution: Repeated DNA Sequences

Explore how to apply the sliding window technique to identify all 10-letter DNA sequences that appear more than once in a string. This lesson helps you implement a hash map to count and track substrings while maintaining efficient time and space complexity, strengthening your ability to solve similar coding interview challenges.

We'll cover the following...

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:

  • 1≤1 \leq s.length ≤10 ...