Python strings are one of the most common data types you’ll encounter as you begin your coding journey. They are sequences of characters, meaning each string is essentially an ordered collection of individual characters. Python treats strings as immutable, which means once you create a string, you cannot modify it directly. However, Python provides powerful tools like indexing and slicing...
In the LeetCode 6 – “Zigzag Conversion” problem, we are given a string s and an integer numRows. The string should be written in a zigzag pattern across numRows rows. After forming this zigzag pattern, the task is to read the characters row by row and return the resulting string. For example, with the input string "PAYPALISHIRING" and numRows = 3, the zigzag pattern looks like:...
LeetCode 5 Solution – The Longest Palindromic Substring: the problem asks us to find the longest substring within a given string s that reads the same forwards and backwards. A palindrome is a word or sequence of characters that is identical when reversed. For example, in the string "babad", both "bab" and "aba" are palindromic substrings, with a length of 3. Given a string s...
Hi, I’m Peter, a professional developer with over 25 years of experience. My journey with coding started when I was just a kid, exploring the world of programming and building my first projects out of pure curiosity and passion. Since then, I’ve turned this lifelong passion into a rewarding career, working on a wide range of projects, from small scripts to complex applications.
Now, I’m here to help others get started with coding through this blog. I know that learning to code can feel overwhelming at first, but I believe that with the right guidance, anyone can develop the skills they need to become a proficient programmer. My goal is to simplify the learning process and provide step-by-step resources that make coding accessible, fun, and practical for everyone.
Whether you’re just starting out or looking to sharpen your skills, I hope this blog serves as a valuable resource on your coding journey. Let’s dive into Python together!