Valid Parentheses Explained | Python Stack & Matching Logic

Valid Parentheses is a classic LeetCode problem that tests stack usage and bracket-matching logic.

In this video, we solve Valid Parentheses using Python, covering:

Understanding valid vs invalid bracket sequences
Why a stack is the right data structure
Mapping opening and closing brackets
Step-by-step logic to validate parentheses
Clean and readable Python implementation
Handling edge cases like empty strings or mismatched brackets

This explanation is useful for:

LeetCode practice
Python learners strengthening stack concepts
Coding interview preparation and quick revision

Simple data structure. Clear logic. Practical Python solution.

Видео Valid Parentheses Explained | Python Stack & Matching Logic канала Tech Diaries