The “Roman to Integer” problem, Leetcode problem #13, is a classic interview question that tests your understanding of algorithms and data structures. In this problem, you’re tasked with converting a given Roman numeral string to an integer. Problem Description Roman numerals are represented by seven different symbols: For example: The challenge is to convert a … Read more
Converting an integer to a Roman numeral is a common problem in coding interviews and algorithm challenges. In this blog post, we will explore the Leetcode 12: Integer to Roman problem, explain various approaches, and provide Java code solutions for each method. Problem Statement for Integer to Roman Given an integer num, convert it into … Read more
Palindromes are fascinating sequences that read the same backward as forward. In computer science, one popular problem is identifying the longest palindromic substring within a given string. While a brute-force approach may work, it often lacks efficiency, especially for long strings. That’s where Manacher’s Algorithm shines, offering a linear time complexity solution. Let’s dive deep … Read more
A palindrome number reads the same forward and backward. This problem is a classic example of simple logic-based programming and is widely used in coding interviews to test problem-solving skills and understanding of fundamental concepts. In this blog post, we’ll explore various ways to solve the Palindrome Number problem (LeetCode 9) in Java. Problem Statement … Read more
The LeetCode problem String to Integer (atoi) is a common question that challenges your ability to handle input conversion and edge cases. In this post, we’ll dive into the problem, break down the requirements, and walk through different solutions in Java. Problem Statement Implement the myAtoi(string s) function, which converts a string to a 32-bit signed integer. … Read more
Introduction The Reverse Integer problem is a classic LeetCode challenge, categorized as an Easy level problem, but it’s a great exercise in understanding integer manipulation and overflow handling. This problem is frequently asked in coding interviews, making it a must-practice for aspiring developers. In this blog post, we’ll break down the problem, explore different solution … Read more
Introduction The Longest Palindromic Substring is a classic problem that tests your understanding of strings, dynamic programming, and optimization techniques. A palindrome reads the same forward and backward, and the problem asks for the longest contiguous palindromic substring in a given string. This post will explore various approaches to solve Longest Palindromic Substring Leetcode problem, … Read more
Finding the median of two sorted arrays is a classic problem in computer science and competitive programming. It is particularly interesting due to its constraints, which encourage an efficient solution rather than a simple brute-force approach. In this article, we’ll cover different methods to solve this problem, including their pros and cons, and provide Java … Read more
The LeetCode Problem 2: Add Two Numbers is a classic linked list problem, and it’s a common interview question for testing algorithmic and coding skills. This problem can be solved in multiple ways, starting from a brute force approach to more optimized solutions. In this article, we’ll walk through various solutions, starting from the most … Read more
The Two Sum problem is one of the most popular algorithmic problems that is frequently asked in technical interviews. This problem tests your ability to think algorithmically and optimize for efficiency. In this article, we’ll break down the Two Sum problem, explore different approaches, and provide a complete Java solution. By the end, you’ll be … Read more