Amazon Interview Question


Country: United States




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0
of 0 vote

Why do you have to go for a trie?
why not create a n-tree having nodes like

Class Employee
{
int Id;
String Name;
Employee Manager;
}

The root node will have no Manager;
If needed you can also maintain a HashTable and an array of linkedlist with <Employee, index>
and LinkedList<Integer>[] subordinates= new LinkedList[];
and index will map to the respective employees subordinate list
i guess all of the operations can be done from these!

- liju.leelives July 08, 2015 | Flag Reply
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0
of 0 vote

You can extended the hashmap idea. Preprocess input to create a HashMap<id(manager), ArrayList<id(sub-ordinates>>.
To print all subordintes of manager you will to first go through all sub-ordinates of manager ie the arraylist, mark them visited and then make them managers and go through their subordinates. Its similar to BFS in a graph.

- um01 July 08, 2015 | Flag Reply
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0
of 0 vote

What does prefix search property mean here

- Shelly July 08, 2015 | Flag Reply
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0
of 0 vote

Whatvdoes prefix search property mean here, could you plz give some short example

- Shelly July 08, 2015 | Flag Reply


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