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Amazon Interview Question for Software Engineer / Developers


Country: United States
Interview Type: In-Person
More Questions from This Interview



Comment hidden because of low score. Click to expand.
5
of 5 vote

I believe the answer is to make sure the BST is balanced ( or go with a self balancing BST to start with)

- R.Alam February 15, 2013 | Flag Reply
Comment hidden because of low score. Click to expand.
0
of 0 votes

yes.. if the tree is not balanced it will result into O(n) search times. one can use AVL or Red black tree for this purpose.

Stl::map itself used red black tree since its balanced and red black tree has advantage over AVL here is that the rotation operation to balance the tree is O(1) whereas in AVL it could be O(logn)

- vik February 16, 2013 | Flag
Comment hidden because of low score. Click to expand.
0
of 0 votes

agree

- oohtj February 17, 2013 | Flag
Comment hidden because of low score. Click to expand.
1
of 1 vote

tree map is implemented using the Red-Black tree concept guaranteeing the expected search time to on 0(logn).

- Anonymous February 17, 2013 | Flag Reply
Comment hidden because of low score. Click to expand.
0
of 0 vote

did not understand the question

- gndp February 15, 2013 | Flag Reply
Comment hidden because of low score. Click to expand.
0
of 0 votes

Question is essentially to explain how tree-map is implemented using BST.

- Anonymous February 15, 2013 | Flag
Comment hidden because of low score. Click to expand.
0
of 0 vote

We can also use AVL tree concept.

- sp1rs July 05, 2013 | Flag Reply


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