Two Pointer Visualization, Note: SkillSetMaster is a separate platform with its own courses. Jul 23, 2025 · 5. To get the value at the address stored in a pointer variable, we use * operator which is call dereferencing operator in C Note that we use * for two different purposes in pointers. The slow pointer moves one step at a time, while the fast pointer moves by two steps. This is the best place to expand your knowledge and get prepared for your next interview. LeetCode Problems solved in this video: Thanks for Watching! If you found this video helpful, check other Geekific Oct 19, 2020 · We have explained two pointer technique which is the optimal way to solve problems related to arrays in O(N) time. Jul 23, 2025 · The Two Pointer Approach is a powerful and efficient technique used to solve problems involving sorted arrays, searching, and optimization. Count valid triangles from integer arrays using two-pointer optimization with animated examples. Linked List visualization: Basic Linked List, Linked List with Tail pointer, Stacks and Queues, and Doubly Linked List Pointer visualizer is a graphical visualization tool hosted on a web application. Apr 4, 2025 · Learn about Java's Two Pointer Technique with practical examples. Level up your coding skills and quickly land a job. Fixed Size Sliding Window: The general steps to solve these questions by following below steps: Find the size of the window required, say K. Mar 17, 2025 · The two-pointer technique uses two-pointers or variables to iterate through a data structure, typically an array or linked list. That only works when the array is sorted — otherwise, increasing or decreasing a pointer won't have predictable effects on the sum. Jul 11, 2025 · Finding the Start of the Cycle Once the slow and fast pointers meet within the loop, the next step is to identify the start of the cycle. Finding the Intersection Point of Two Linked Lists: To find the intersection point of two linked lists using the two-pointer technique, follow these steps: Initialize two pointers, p and q, to the heads of the two linked lists, respectively. About this Video:In this video, we’ll understand one of the most powerful and time-saving techniques in Data Structures — the Two Pointer Technique — explain. Iterating two monotonic pointers across an array to search for a pair of indices satisfying some condition in linear time. It will cover the theory behind the approach, provide step-by-step examples, and discuss its time and space complexity. Discover all unique triplets that sum to zero using two-pointer approach with interactive coding challenge. It is usually meaningless for us to think of the values as memory addresses. Jul 15, 2024 · Mastering Data Algorithm — Part 2 Two-Pointer Technique and Visualizations Last week, we discussed the two-pointer technique and illustrated it with four examples. com/?utm_src=youtube&utm_target=l2b2ychannel to watch more visual videos, solve interactive puzzles and practice problems.

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