After your interviews at Google and Microsoft, you started getting comfortable with the in- terview process and wanted to give it a try with Amazon as well. As Amazon makes more money by selling items to people, regardless of people really need those items or not, they are interested in suggesting "related" items to the query word of a user. It also happens that people make typos such that the letters are typed out of order. You are given a list of n words, which consists of words that are used in the names of items sold on Amazon. You are being asked to suggest a data structure to store these words in memory, which will efficiently suggest words that are consisting of the same letters as the query word in constant time. For example, if the user is searching for "silent", you should suggest the word "listen", among other words that are stored in your data structure. What sort of a data structure would you use? Why? Explain the advantage of using this data structure for that problem. Then, suggest a search function on the data structure you suggested above, that will efficiently offer alternative words, as explained above. Do the runtime analysis of your search function.

After your interviews at Google and Microsoft, you started getting comfortable with the in- terview process and wanted to give it a try with Amazon as well. As Amazon makes more money by selling items to people, regardless of people really need those items or not, they are interested in suggesting "related" items to the query word of a user. It also happens that people make typos such that the letters are typed out of order. You are given a list of n words, which consists of words that are used in the names of items sold on Amazon. You are being asked to suggest a data structure to store these words in memory, which will efficiently suggest words that are consisting of the same letters as the query word in constant time. For example, if the user is searching for "silent", you should suggest the word "listen", among other words that are stored in your data structure. What sort of a data structure would you use? Why? Explain the advantage of using this data structure for that problem. Then, suggest a search function on the data structure you suggested above, that will efficiently offer alternative words, as explained above. Do the runtime analysis of your search function.

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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