Downloading Queries

It was a frustated day in college.So, After coming back to the hostel anu made a plan to watch some movies.She puts N movies on downloading each of size a[i] and downloading speed b[i].Now her brother has assign a task to anu that she has to tell him which movie will download first and in last.So, you have to help Anu in finding the index of the minimum and maximum time that any of the movie will