Error in Dataset of First Programming Assignment

Hi all,

There is an error in the Dataset file of the first programming assignment. Same musicIDs appear in the dataset but with different genres or artistIDs.

This was a mistake caused by not a very accurate random generator. I forgot to take into the account that the MusicID-ArtistID-Genre should be unique.

You can assume that this tuple (MusicID-ArtistID-Genre) will be unique. Meaning that when answering queries, you can only consider the first unique tuple you find for a specific musicID/Genre. One other alternative would be to query through all IDs and answer the queries. Both scenarios will be accepted because of the mistake that happened in the dataset. 

Best of Lucks.