Hi Team,
What data type should be used if I want to store the data like this
id,users
1, user1
2, user1; {user2,user3}
3, user1; {user2,user3}; user4
Operations:
We can remove the users from list
input: id, username -> 2,user1
output: 2,{user2, user3}
input: id, username -> 3,user3
output: 3, user1; {user2}; user4
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