Vectors

# Vectors - Vectors 9:03 AM Outline and Reading The Vector...

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4/1/2003 9:03 AM Vectors 1 Vectors 4/1/2003 9:03 AM Vectors 2 Outline and Reading The Vector ADT (§5.1.1) Array-based implementation (§5.1.2) 4/1/2003 9:03 AM Vectors 3 The Vector ADT The Vector ADT extends the notion of array by storing a sequence of arbitrary objects An element can be accessed, inserted or removed by specifying its rank (number of elements preceding it) An exception is thrown if an incorrect rank is specified (e.g., a negative rank) Main vector operations: elemAtRank (int r): returns the element at rank r without removing it replaceAtRank (int r, Object o): replace the element at rank r with o insertAtRank (int r, Object o): insert a new element o to have rank r removeAtRank (int r): removes the element at rank r Additional operations size () and isEmpty () 4/1/2003 9:03 AM Vectors 4 Applications of Vectors Direct applications Sorted collection of objects (elementary database) Indirect applications Auxiliary data structure for algorithms Component of other data structures 4/1/2003 9:03 AM Vectors 5 Array-based Vector

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