What you mean, your solution was way cleaner than his smh your goated

its not a matter of big brain, just experience with a bit of love and openness to python. if you know python, you will become good at it. if you know python with computer science, you will become more confident at it. there are documentations written, good tutorials for ds and algo such as in geeksforgeeks, blogs, and books. pick your resources wisely and you will surely become better ! :D