LeetCode solutions

4Sum Leetcode | Leetcode 18 Solution

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The 4Sum problem is a variation of the classic two-sum problem. The task is to find all unique quadruplets in an array that sum up to a target value. This problem is often encountered in coding interviews and algorithm competitions. In this blog post, we will discuss various solutions for the 4Sum problem, ranging from … Read more

3Sum Leetcode | Leetcode 15 Solution

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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