Snap Software Engineer interview questions

I had applied online.The recruiting coordinator setup the interview.Got a coding question from a Software Engineer who works at Snapchat.The Software Engineer was very helpful and guided me along the solution.

Asked a project in my resume. I just described my project, and he didn't follow up, and no question or challenge for my project. Then he sent me a link on google hangout, which is for codepair. Codepair is pretty much like a sublime editor, and in the comment area, you can discuss with the interviewer, and in the code edit area, you write the code, and compile, and run. You have to get the expected answer, then he would follow up.