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Remove Invalid Parentheses

Explore how to solve the remove invalid parentheses problem by applying backtracking. Learn to identify valid strings formed by removing minimum invalid parentheses and implement your solution effectively.

Statement

You are given a string, s, that contains:

  • Lowercase English letters

  • Opening '(' and closing ')' parentheses

A string is considered valid if:

  1. All opening parentheses '(' are closed properly by a matching ')'.

  2. The parentheses are in ...