Two Pointer Technique Problems, This is the best place to expand your
Two Pointer Technique Problems, This is the best place to expand your knowledge and get prepared for your next interview. This video walks through the problem step by step with 🚀 DSA Journey | Learning Two Pointers Technique Today 11, I explored the Two Pointers technique, a simple yet powerful approach to solve problems efficiently. You can find a list here Two Pointer is a classic technique used to solve coding interview problems. The Two-Pointers Technique is a simple yet powerful strategy where you use two indices (pointers) that traverse a data structure—such as an array, list, or string—either toward each This guide will walk you through the complete concept of the Two Pointers technique, its motivation, real-world applications, variations, By using two pointers to traverse data structures (typically arrays or strings), we can solve complex problems with optimal time complexity, often In the other scenario, one pointer moves at a slow speed, while the other pointer moves at a fast speed, both of them moving in the same direction. This problem is based on a sorted array, where we A free collection of curated, high-quality competitive programming resources to take you from USACO Bronze to USACO Platinum and beyond. Two pointer techniques — a visual tutorial Three animated two-pointer techniques to solve Three different problems. There are two This collection is designed to help you understand and master the Two Pointer Technique, a powerful approach for solving array and string problems efficiently. 5 months, and wanted to share my findings/classifications here. For the purpose of this article, a pointer is an index of an array. Your old 30DaysCoding purchases are accessible via the dashboard link above. io/Code solutions in Python, Java, C++ and JS for this can be found at my GitHub repo here: h The Two Pointer technique is one of the most intuitive yet powerful problem-solving strategies used in competitive programming and One of these approaches goes by Two-Pointers and is the subject of this video. As a self-taught developer Master the Two Pointer Technique to solve array and string problems efficiently. If you’re still using nested loops to solve pair problems, it’s time to level up. As the name suggests, Day 16 of 365 Days LeetCode Challenge 🚀 In this video, we solve LeetCode 658 – Find K Closest Elements using the Two Pointer technique. Whether it is searching, manipulation, Discover the power of the two-pointer technique in solving LeetCode problems! This guide explores how two pointers can optimize arrays, The two-pointer technique is a versatile and efficient tool in the world of algorithms, especially when dealing with arrays, strings, and linked lists. 1. By using two pointers that traverse data structures in a coordinated What Is the Two Pointers Technique? Two pointers is a pattern where you use two indices (or “pointers”) to traverse an array — either from both The two-pointer technique is a powerful tool in any programmer’s arsenal, especially when tackling array-based problems in coding interviews. It helps solve problems that involve searching, sorting, or traversing arrays, strings, or linked lists in an efficient way. We move left pointer i when the sum of A [i] How to Master Two Pointer Problems: Tips and Resources If you’ve ever delved into coding challenges, particularly in algorithmic interviews or competitive programming, you might The two-pointer technique improves time complexity for many arrays and linked list problems from O (n^2) using nested loops to O (n) for a The two-pointer approach is a valuable tool in the programmer, offering a versatile and efficient technique for solving array-related problems. By using two pointers to Two Pointer Algorithm For Coding Interview: In this video, I have explained two pointer technique which is the optimal way to solve problems related to arrays, strings and linked list in O (N The author believes that the two-pointer approach is often used for problems with a time complexity requirement, and it is essential to optimize for such. Written by top [Better Approach 2] Sorting and Two-Pointer Technique - O (n × log (n)) time and O (1) space The idea is to use the two-pointer technique but for using the two-pointer technique, the Solve LeetCode 905 "Sort Array By Parity" using the two-pointer technique in O (n) time and O (1) space. Discover the nuances of using 'and' and 'or' conditions with the two pointers technique in LeetCode problems, demonstrated through merging two sorted lists. Learn how it simplifies array and string problems with real-world examples and tips for coding interviews in 2025. It allows solving a class of problems efficiently by using two pointers to iterate through Two Pointers Approach: Dive into the mechanics of the technique, exploring scenarios where two pointers traverse a sequence to locate solutions or patterns. In this short, I break down the two pointers technique We have explained two pointer technique which is the optimal way to solve problems related to arrays in O (N) time.