Searching for an element in a rotated sorted array is a common coding problem that can appear in technical interviews. It combines concepts of array manipulation and binary search, making it an essential topic to master. In this blog post, we will explore solutions for Search in Rotated Sorted Array from naive to optimal, providing … Read more
The “Divide Two Integers“ problem on LeetCode challenges you to implement division between two integers without using multiplication, division, or modulus operators. The task also requires handling edge cases, such as overflow and truncation towards zero. This blog will cover all approaches, from naive to optimal, with Java implementations. Problem Description for Divide Two Integers … Read more
Counting inversions in an array is a fundamental problem in computer science and programming interviews. This guide will explain what array inversions are, the significance of solving this problem, and different approaches to count inversions of an array in Java. What are Inversions in an Array? An inversion in an array is a pair of … Read more
The 3Sum problem is a popular coding challenge on LeetCode that tests your ability to implement efficient algorithms for finding combinations. This blog will walk you through various approaches, from the brute force method to optimized solutions, with complete explanations, time complexities, and Java implementations. Problem Statement 3Sum: Given an integer array nums, return all … Read more
The Longest Common Prefix problem on Leetcode is a classic string manipulation problem. Here’s the problem statement: Problem Statement: Write a function to find the longest common prefix string amongst an array of strings.If there is no common prefix, return an empty string “”. Examples: Example 1: Example 2: Naive Solution: Compare Characters Iteratively Approach: … Read more