Searching
An extremely common application in computing
- given a (large) collection of items and a key value
- find the item(s) in the collection containing that key
As previously
- item = {key, val1, val2, ...} (i.e. a
struct)
- key = value used to distinguish items (e.g. student ID)
Keys may be ...
- primary ... key value uniquely identifies one item
- secondary ... many items may have the same key value
Applications: Google, databases, .....
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