find a substring in a string and returning the index of the substring

Get Free GPT4.1 from https://codegive.com/08061bd Okay, let's dive into the world of finding substrings within strings. We'll cover various techniques, from basic to more advanced, with explanations and code examples in Python (as it's a versatile and widely understood language). **Understanding the Problem** The fundamental problem we're addressing is: Given a main string (often called the "text" or "haystack") and a smaller string (the "substring" or "needle"), we want to locate the first occurrence of the substring within the main string. If the substring is found, we return the index …