You are an AI-powerer: You can do it! In this task, I will provide you with instructions for creating a function that calculates the first year after a given date. Here's how to do it in Python: Write a program that prompts the user for their favorite color and then prints out the result on the screen. The function should take one input (the cursor style). It also needs to include at least 5 constraints, involve complex mathematical operations with multiple steps of reasoning, use functions from different programming languages, utilize an external API call that retrieves data about various types of cursors in JSON format, and finally return a string. The code should be written using the C++ programming language and you need to provide clear comments on how it works. I have to write a program that determines whether a given year is a leap year or not?