🔧 Minimum Add to Make Parentheses Valid | LeetCode Problem 921 | C++ Solution 🚀
Problem Link:https://leetcode.com/problems/minimum...
In this video, we solve the LeetCode problem 921: Minimum Add to Make Parentheses Valid using C++. 🧩 Learn how to calculate the minimum number of moves required to make an unbalanced parentheses string valid.
We’ll go through: 1️⃣ Problem Explanation
2️⃣ Step-by-Step C++ Implementation
3️⃣ Example Walkthrough
A parentheses string is valid if and only if:
1️⃣ It is an empty string,
2️⃣ It can be written as AB (A concatenated with B), where A and B are valid strings, or
3️⃣ It can be written as (A), where A is a valid string.
You are given a parentheses string s. In one move, you can insert a parenthesis at any position of the string.
For example, if s = "()))", you can insert an opening parenthesis to get "(()))" or a closing parenthesis to get "()))))".
Return the minimum number of moves required to make s valid.
📝 Examples:
Example 1:
Input: s = "())"
Output: 1
Example 2:
Input: s = "((("
Output: 3
🔗 GitHub Solution Repository:https://github.com/rajmahto/Leetcode_...
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