Two Pointer Technique Linked List. Oct 9, 2021 · Leetcode 141. Two pointers are THE fundamental

Oct 9, 2021 · Leetcode 141. Two pointers are THE fundamental technique for linked list problems. Master two patterns: slow-fast (different speeds) and gap (same speed, different start). Mar 22, 2017 · Ten years ago, I was shown a technique for traversing a linked list: instead of using a single pointer, you used a double pointer (pointer-to-pointer). Imagine there are two runners with different speed. By using two pointers moving at different speeds, we can achieve significant In the last chapter, we have introduced how to use the two-pointer technique in a linked list. The differences between how the pointers iterate can be used to make calculations on the list more efficient. Jan 26, 2025 · In this video, I talk about the two pointers technique which is a very important DSA topic for coding interviews. Pointers can be at any place depending upon what we are trying to achieve. The two-pointer technique is a versatile and efficient strategy commonly used in solving problems on arrays, strings, linked lists, and other data structures.

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