I had a phone screen with HR and then had two Skype rounds with engineers. They shared a screen where I typed the code. I don't remember if it was just a text editor or an IDE. In either of the interviews, I did not run my code. I wasn't taken to the next round after the Skype interviews.

Reverse a number, i.e., 123 written as 321.

We implement a cd / command of Linux, given the path of the current directory and the sequence of paths for the destination directory.

Create a paint fill function that will take the screen or drawing edge into consideration and fill the new color accordingly.