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Amazon Interview Question for Software Engineer / Developers


Country: United States



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Weighted DiGraph, with A,Starbucks,B as vertices (probably has other nodes as well) and time as weight.

Probablity
All paths from A to S and S to B with adding the time not exceeding N mins/would be number of paths from A-B

- arht January 09, 2015 | Flag Reply
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Probablity
All paths from A to S and S to B with Nmins(BFS till time reaches N mins) / total number of paths from A-B

- Anonymous January 09, 2015 | Flag Reply
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All paths from A to S and S to B with Nmins(BFS till time reaches N mins) / total number of paths from A-B (till time reaches N mins)

- jayk January 16, 2015 | Flag
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For simplicity let assume that there are K ways from A to B that you can reach in N or less minutes. From interviewer you need to clarify also constrains like loops in paths, etc.
In Q ways from K there are Starbuckses. As a result probability will be

P= Q/M.

As reference of finding K ways please see wikipedia URL:
en.wikipedia.org/wiki/K_shortest_path_routing

- Aram.Khzarjyan January 09, 2015 | Flag Reply
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what is M..?
I think it should be K/Q

- raju. January 10, 2015 | Flag


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