Tag: #two pointers

Fast & Slow Pointers vs Two Pointers vs Sliding Window

In this post I compare Fast & Slow Pointers, Two Pointers, and Sliding Window patterns: how each pattern works, how pointers move, their key differences, and how to recognize which approach to use in LeetCode problems and coding interviews.

Two Pointers pattern in detail: how to recognize and use it

The Two Pointers pattern one of the most common and famous patterns. It uses two indices or pointers to process data efficiently, with different variations for arrays, strings, and linked lists.

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