Please help me locate the cause of the error

Question

After creating and running the code below on my system, it worked perfectly. But when I try to run it on code playground. It shows error.

https://code.sololearn.com/wGIsxmqri1eR/?ref=app

Answer 1

Please take the code from your post copy it to the playground and save it. Then post the link to your code in your post. It makes the whole process of those who want to help you much easier and may increase the likelihood of actually receiving help.