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In this post, you will find the solution for the **Longest Valid Parentheses in C++, Java & Python-LeetCode problem**. We are providing the **correct and tested solutions** to coding problems present on **LeetCode**. If you are not able to solve any problem, then you can take help from our Blog/website.

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** Link for the Problem** – Longest Valid Parentheses– LeetCode Problem

Longest Valid Parentheses – LeetCode Problem

**Problem:**

Given a string containing just the characters `'('`

and `')'`

, find the length of the longest valid (well-formed) parentheses substring.

**Example 1:**

Input:s = "(()"Output:2Explanation:The longest valid parentheses substring is "()".

**Example 2:**

Input:s = ")()())"Output:4Explanation:The longest valid parentheses substring is "()()".

**Example 3:**

Input:s = ""Output:0

**Constraints:**

`0 <= s.length <= 3 * 10`

^{4}`s[i]`

is`'('`

, or`')'`

.

Longest Valid Parentheses– LeetCode Solutions