Instructions for Q1:

hadoop jar hw1.jar MutualFriends <input to adj.txt> <output path>

Instructions for Q2:

hadoop jar hw1.jar MutualFriendsCount <input to adj.txt> <output path>

Instructions for Q3:

hadoop jar hw1.jar MutualFriendsInMemoryJoin <input to adj.txt> <output path>

Instructions for Q4:

hadoop jar hw1.jar UserFriendsTopAvg <input to adj.txt> <output path>