Regular Expression Matching
Updated Feb 24, 2026
Problem
Implement regex matching with support for '.' and '*'.
Constraints
1 <= s.length <= 20
Examples
Example 1
Input:
{"s": "aa", "p": "a"}
Output:
false
Function Signature
def isMatch(self, s: str, p: str) -> bool
How to Submit
Implement a Solution class with a isMatch method.
Your method will be called with the input parameters and should return the answer.