Repeated Substring Pattern | Dataford Interview Questions

Given a string, determine whether it contains a repeated substring pattern and return the matching pattern if one exists. Return the shortest non-empty substring that can be repeated at least twice to form the complete string, or None if no such pattern exists. Implement def repeated_substring_pattern(s):; assume 1 <= len(s) <= 500 and that s contains ordinary characters.

Constraints

1 <= len(s) <= 500
The input contains ordinary characters.
The matching pattern must repeat at least twice.
Return the shortest valid pattern when one exists.

Function Signature

def repeated_substring_pattern(s):

Your question is Repeated Substring Pattern. Start with the requirements in the Question tab.

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Problem

Constraints

1 <= len(s) <= 500
The input contains ordinary characters.
The matching pattern must repeat at least twice.
Return the shortest valid pattern when one exists.

Function Signature

def repeated_substring_pattern(s):

Your question is Repeated Substring Pattern. Start with the requirements in the Question tab.

Run and submit as often as you like. When you're ready, talk me through your approach or go straight to the code.