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Data Structure in C++

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1. Describe a mechanism to access the telephone customer records by telephone #. Assume that we have a huge data in hand, say a million records or so. Choose a data structure (or) a combination of data structures that will give the best search time. Explain your selection and discuss the speed of the search operation. Keep in mind that a million records cannot be kept in one array. There is no need to code in C++.

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The expert examines dats structure in c++.

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We used B-trees for similar (telephony) application.
Complexity of B-tree algorithm is O(log N).
See references at the end.

Note, we also coded phone numbers using BCD fomat ...

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