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An In-Depth Understanding of Memory and Pointers in C

Practice: Reverse a String

Explore how to reverse a string in C by using a two-pointer approach that swaps characters in place. This lesson helps you understand how to manipulate strings efficiently with minimal loops and no extra memory.

We'll cover the following...

Introduction

In this practice session, we will maintain our theme of using two pointers to solve problems efficiently.

Problem statement

The task is to reverse a given string. We aren’t allowed to use extra memory. We’re also not allowed to use more than one loop, that is, the complexity should be O(n)O(n) ...