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A phonebook analogy. To find a particular name in the phonebook, open the book to the middle. If the name is on the page, you're done. If the name would appear before the names on the page alphabetically, open the left half of the book to its middle and repeat. If the name would appear after the names on this page alphabetically, open the right half of the book to its middle and repeat. O(log N).
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Know any positive aspects of this option?
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Know any negative aspects of this option?