Abstract Data Types (ADTs) Fundamentals
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Questions and Answers

What is the primary focus of Abstract Data Types?

  • The algorithms used for operations
  • How the data is stored
  • What can be done with the data (correct)
  • The implementation details of the data

    • What is an example of an Abstract Data Type?

  • A storage structure to store data items
  • A collection of data items with basic operations (correct)
  • An array of variables
  • An implementation of an airplane flight with 10 seats

    • What is the main advantage of using Abstract Data Types?

  • It enables the use of complex algorithms
  • It provides a more detailed view of the data structure
  • It separates the study of data and operations from their implementation (correct)
  • It allows for more efficient storage of data

    • What is the purpose of the 'DONE' variable in the algorithm to reserve a seat?

    <p>To terminate the loop when a seat is reserved</p> Signup and view all the answers

    What is a disadvantage of using 10 individual variables to store the data of an airplane flight?

    <p>It is not scalable for larger data sets</p> Signup and view all the answers

    What is the primary difference between a Data Structure and an Abstract Data Type?

    <p>A Data Structure is an implementation, while an Abstract Data Type is a definition</p> Signup and view all the answers

    What is the purpose of the algorithm to list available seats?

    <p>To display the available seats</p> Signup and view all the answers

    What is the primary difference between a Data Structure and an Abstract Data Type?

    <p>Data Structure is used at a physical level, while ADT is used at a logical level</p> Signup and view all the answers

    What is the characteristic of a one-dimensional array?

    <p>It has only one index</p> Signup and view all the answers

    What is the purpose of the display function in the array output?

    <p>To display the elements of the array</p> Signup and view all the answers

    What is the difference between a static array and a dynamic array?

    <p>Static array has a fixed size, while dynamic array has a variable size</p> Signup and view all the answers

    What is the characteristic of an array as an Abstract Data Type?

    <p>It is a fixed-size, ordered collection of same-type elements with direct access</p> Signup and view all the answers

    What happens when a seat is reserved using the algorithm?

    <p>Both b and c</p> Signup and view all the answers

    What is the purpose of the subscript operator [] in an array?

    <p>To access an element at a specific position</p> Signup and view all the answers

    Study Notes

    Abstract Data Types (ADTs)

    • Solving a problem involves processing data and careful organization of the data to identify the collection of data items and basic operations that must be performed on them.
    • An ADT is a collection of data items together with the operations on the data.
    • The word "abstract" refers to studying data and basic operations independently of their implementation.
    • Focus on what can be done with the data, not how it is done.

    Implementation of ADT

    • Consists of storage structures to store the data items and algorithms for basic operations.
    • Example: Airplane flight with 10 seats to be assigned, where tasks involve listing available seats and reserving a seat.

    Data Structures, Abstract Data Types, and Implementations

    • Data Structures and Abstract Data Type are often used interchangeably.
    • ADT is used when data is studied at a logical level.
    • Data structure refers to a construct in programming language used to store data.

    Array ADT

    • A collection of data elements: a fixed-size sequence of elements, all of the same type.
    • Basic operations: direct access to each element in the array by specifying its position.
    • One-dimensional array: only one index is used.
    • Multi-dimensional array: array involving more than one index.
    • Static array: the compiler determines how memory will be allocated for the array.
    • Dynamic array: memory allocation takes place during execution.

    Array Syntax and Examples

    • One-Dimensional Static Array Syntax: CopyElementType arrayName[CAPACITY];
    • Example: int b[10]; and int b[10] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};

    Array as an ADT

    • Fixed size: specify the capacity of the array.
    • Ordered: indices are numbered 0, 1, 2,..., capacity -1.
    • Same type of elements: specify the element type.
    • Direct access: subscript operator [].

    Array Output Function

    • Example: void display(int array[], int num_values) { for (int i = 0; i &lt; num_values; i++) cout ... }.

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    Related Documents

    LU 2.txt

    Description

    Learn the basics of Abstract Data Types (ADTs), including how they are defined, their operations, and implementation. Understand the concept of abstractness in data processing.

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