How to create a Set of size N in C++ - Step by Step Examples



How to create a Set of size N in C++ ?

Answer

In C++, sets can be represented using arrays or the standard library's std::set container. To create a set of size N with different types of items using arrays, you can use arrays with unique elements.



✐ Examples

1 Create Set of Size N with Strings

In this example,

  1. We create an array named stringSet with initial string elements.
  2. We ensure that the array contains unique elements to represent a set.
  3. The number of elements in the array determines the size of the set.

C++ Program

#include <iostream>
#include <string>

int main() {
    std::string stringSet[] = {"apple", "banana", "cherry"};
    int size = sizeof(stringSet) / sizeof(stringSet[0]);

    std::cout << "Size of stringSet: " << size << std::endl;
    return 0;
}

Output

Size of stringSet: N

2 Create Set of Size N with Integers

In this example,

  1. We create an array named intSet with initial integer elements.
  2. We ensure that the array contains unique elements to represent a set.
  3. The number of elements in the array determines the size of the set.

C++ Program

#include <iostream>

int main() {
    int intSet[] = {1, 2, 3};
    int size = sizeof(intSet) / sizeof(intSet[0]);

    std::cout << "Size of intSet: " << size << std::endl;
    return 0;
}

Output

Size of intSet: N

Summary

In this tutorial, we learned How to create a Set of size N in C++ language with well detailed examples.




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  2. How to Initialize a Set in C++ ?
  3. How to Get Length of a Set in C++ ?
  4. How to create a Set of size N in C++ ?
  5. How to create a Set of Numbers from 1 to N in C++ ?
  6. How to create a Set of integers in C++ ?
  7. How to create a Set of Strings in C++ ?
  8. How to Access Items in a Set in C++ ?
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  10. How to Iterate Over a Set in C++ ?
  11. How to check if a Set is Empty in C++ ?
  12. How to check if a Set is Not Empty in C++ ?
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  14. How to check if a Specific Item is present in the Set in C++ ?
  15. How to check if a Set contains all the items of Another Set in C++ ?
  16. How to Sort Items of a Set in C++ ?
  17. How to Copy a Set in C++ ?
  18. How to add an Item to a Set in C++ ?
  19. How to find Union of Two Sets in C++ ?
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  21. How to check if Two Sets are Equal in C++ ?
  22. How to Convert a Set of Integers to a Set of Strings in C++ ?
  23. How to Convert a Set of Strings to a Set of Integers in C++ ?
  24. How to Convert a Set of Floats to a Set of Strings in C++ ?
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  26. How to Remove Specific Item from a Set in C++ ?
  27. How to Remove Items from Set based on a Condition in C++ ?
  28. How to create a Set of Sets in C++ ?