set find() function in C++ STL

The set::find is a built-in function in C++ STL which returns an iterator to the element which is searched in the set container. If the element is not found, then the iterator points to the position just after the last element in the set.

Syntax:

 
set_name.find(element) 

Parameters: The function accepts one mandatory parameter element which specifies the element to be searched in the set container.

Return Value: The function returns an iterator which points to the element which is searched in the set container. If the element is not found, then the iterator points to the position just after the last element in the set.

Below program illustrates the above function.

filter_none

edit
close

play_arrow

link
brightness_4
code

// CPP program to demonstrate the
// set::find() function
#include <bits/stdc++.h>
using namespace std;
int main()
{
  
    // Initialize set
    set<int> s;
  
    s.insert(1);
    s.insert(4);
    s.insert(2);
    s.insert(5);
    s.insert(3);
  
    // iterator pointing to
    // position where 2 is
    auto pos = s.find(3);
  
    // prints the set elements
    cout << "The set elements after 3 are: ";
    for (auto it = pos; it != s.end(); it++)
        cout << *it << " ";
  
    return 0;
}

chevron_right


Output:

The set elements after 3 are: 3 4 5


My Personal Notes arrow_drop_up

The function of education is to teach one to think intensively and to think critically

If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute.geeksforgeeks.org or mail your article to contribute@geeksforgeeks.org. See your article appearing on the GeeksforGeeks main page and help other Geeks.

Please Improve this article if you find anything incorrect by clicking on the "Improve Article" button below.




Article Tags :
Practice Tags :


2


Please write to us at contribute@geeksforgeeks.org to report any issue with the above content.