Two Pointer Technique Problems, Day 28 of DSA . By moving two

Two Pointer Technique Problems, Day 28 of DSA . By moving two pointers at different speeds, you can find the middle element in a single pass without extra space. Finally, I’ll leave you The Two Pointers technique is a powerful tool in any programmer’s arsenal, especially when tackling array and string problems. A must-know problem for coding interviews & LeetCode 馃挕remove duplicates f Solve LeetCode 905 "Sort Array By Parity" using the two-pointer technique in O (n) time and O (1) space. Sep 9, 2025 路 Basics of Two Pointer The two-pointer technique uses two indices that move towards each other or in the same direction to process data efficiently. Oct 19, 2020 路 We have explained two pointer technique which is the optimal way to solve problems related to arrays in O (N) time. As a self-taught developer (no theoretical CS background), learning data … Aug 11, 2020 路 Two-pointer technique is commonly used to solve array problems very efficiently. If you’re still using nested loops to solve pair problems, it’s time to level up. . Whether the pointers are moving towards each other or in the same direction, this approach can simplify complex problems and improve the performance of your solutions. This video walks through the problem step by step with The Find the Middle of a Linked List problem is a classic example of how the Slow and Fast Pointer technique simplifies linked list traversal. 2. Given a sorted array A (sorted in ascending order), having N integers, find if there exists any pair of elements (A [i], A [j]) such that their sum is equal to X. Master Data Structures & Algorithms for FREE at https://AlgoMap. If you are preparing for technical interview, two pointers is one of the popular topics that you can't skip :). Essentially, it involves using two pointers (or indices) to traverse an array, often with each moving at a different speed or starting position. Jan 13, 2022 路 Hello, I have been solving all two pointers tagged problems in last 3. Jan 7, 2024 路 This blog aims to shed light on the significance of understanding and applying specific problem-solving techniques during interview prep, focusing on the invaluable Two Pointer technique. Jul 8, 2025 路 By using two pointers to traverse data structures (typically arrays or strings), we can solve complex problems with optimal time complexity, often transforming O (n²) solutions into O (n) Aug 21, 2025 路 It helps solve problems that involve searching, sorting, or traversing arrays, strings, or linked lists in an efficient way. Apr 4, 2025 路 1. . The Find the Middle of a Linked List problem is a classic example of how the Slow and Fast Pointer technique simplifies linked list traversal. Usually applied to sorted arrays or strings. The pattern works for merging, counting, and sliding window problems. Sep 4, 2025 路 The Two Pointer Technique is a powerful method often used in solving array and string problems efficiently.

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