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I would propose something like this
- pradeep.ilango.i3.mobile October 02, 20201. AddFreindShip - Connect 2 nodes with an edge.
2. GetSuggestedFriends - do bfs from the node. All the nodes in the level 1 are node's friends. All nodes in 2nd level friends of friends. They are the target nodes. Among them, we have to see who has more number of edges from level 1 nodes. we can count that during bfs. Iterate the count list and return the nodes with the highest count.