Starting Out with C++ from Control Structures to Objects (9th Edition)
9th Edition
ISBN: 9780134498379
Author: Tony Gaddis
Publisher: PEARSON
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Chapter 7.11, Problem 7.31CP
Program Plan Intro
The Standard Template Library (STL) includes the collection of data types and
- A special data type called vector is offered by STL which is useful for standard arrays.
A vector stores the elements or values in sequence order and the values are stored in continuous memory locations.
- The subscript operator “[]” in the vector helps to read the content of each element.
Syntax:
Syntax to define a vector is as follows:
//Declaring an empty vector
vector <data_type> name_of_vector;
In the above line,
- The keyword “vector” represents the vector declaration.
- The “<data_type>” represents the type of data the vector can hold; the data types such as “int”, “float”, “string”, “char”, and “double”.
- The “name_of_vector” represents the name of the vector.
Storing values in a vector:
To store a value in a vector, a special member function called “push_back()” has been used.
Consider the following format to store value in a vector:
//store the value in vector
Name_of_vector.push_back(element_for_insertion);
In the above line,
- The “Name_of_vector” represents the vector name.
- The “Push_back()” is a member function which is used to store values in a vector.
- The “element-for-insertion” is the parameter which holds the value to be stored in the vector.
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Chapter 7 Solutions
Starting Out with C++ from Control Structures to Objects (9th Edition)
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