Find connected components in string
Last updated: August 23, 2025
Quick Overview
Given a string consisting of lowercase letters, identify and return all the connected components, where a connected component is defined as a substring that can be formed by consecutive characters that are adjacent in the alphabet. The output should be a list of these connected components, with each component represented as a string.
Walmart
August 23, 2025595
7
4,418 solved
Given a string consisting of lowercase letters, identify and return all the connected components, where a connected component is defined as a substring that can be formed by consecutive characters that are adjacent in the alphabet. The output should be a list of these connected components, with each component represented as a string.
How to Approach This
- Clarify input constraints and edge cases before writing code.
- Walk through your approach verbally and confirm with the interviewer before coding.
- Start with a brute force solution, then optimize. Mention time and space complexity.
- Test your solution with examples, including edge cases like empty input or duplicates.
- Consider common patterns: sliding window, two pointers, hash map, BFS/DFS, dynamic programming.
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Problem Analysis
To find connected components in a string, we can leverage a two pointers approach. A connected component is a substring formed by consecutive characters that are adjacent in the alphabet. For inst...
Approach
- Initialize Variables: Start with an empty list
componentsto store the connected components and a variablestartset to 0 to mark the beginning of a component. - **Iterate Through the Stri...
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