LinkedIn Software Engineer - Intern interview questions

I handed in my resume via my school's co-op website. I ended up getting an interview and there were 2 rounds. The interviewer was really friendly and I felt really comfortable talking with him. He asked me about my side projects and talked about the type of work he did and the work previous interns did. I didn't get to 2nd round though

1st round Phone Screen: The lady was sweet and asked what position I was interested in and the general HR questions like what am I looking for in an internship. 2nd round Phone Technical: Given a sorted array with duplicates and a number, find the range in the form of (startIndex, endIndex) of that number. For example, find_range({0 2 3 3 3 10 10}, 3) should return (2,4). find_range({0 2 3 3 3 10 10}, 6) should return (-1,-1). The array and the number of duplicates can be large.