Minimum Remove to Make Valid Parentheses

Explore how to identify and remove unmatched parentheses in a string to achieve valid parenthesization. Learn to apply stack data structures to track opening and closing parentheses effectively. This lesson helps you understand problem constraints and implement solutions that balance correctness with efficiency.

We'll cover the following...

Statement
Examples
Understand the problem
Figure it out!
Try it yourself

Statement

Given a string, s, that may have matchedEach opening parenthesis, (, has a closing parenthesis, ), for it. and unmatchedThere is no corresponding closing parenthesis, ), for an opening parenthesis, (. parentheses, remove the minimum number of parentheses so that the resulting string represents a valid parenthesization. For example, the string “a(b)” represents a valid parenthesization while the string “a(b” doesn’t, since the opening parenthesis doesn’t have any corresponding closing parenthesis.

Constraints:

...