The Longest Valid Parentheses Leetcode problem is a classic string problem that tests your ability to work with parentheses and logic structures. Here’s the problem statement: Given a string containing just the characters ‘(‘ and ‘)’, find the length of the longest valid (well-formed) parentheses substring. This blog post will walk you through several approaches … Read more
The LeetCode 23 problem, “Merge K Sorted Lists,” is a classic example that tests your ability to implement optimized algorithms for merging lists. Let’s explore the problem statement, analyze its solutions, and discuss their time and space complexities. Problem Statement for Merge K Sorted Lists You are given an array of k linked lists, where … Read more
Problem Description: Given n non-negative integers representing an elevation map where the width of each bar is 1, compute how much water it can trap after raining. Example 1 : Example 2: Constraints: Problem Link :Trapping Rain Water – LeetCode Solution(s): Approach 1: Brute Force Solution Java Code: Explanation: 1.Initialization: 2.Main Loop: 3.Finding Maximum Height to the Left: … Read more