multimap::count() in C++ STL

The multimap::count is a built-in function in C++ STL which returns the number of times a key is present in the multimap container.

Syntax:

multimap_name.count(key)

Parameters: The function accepts one mandatory parameter key which specifies the key whose count in multimap container is to be returned.

Return Value: The function returns the number of times a key is present in the multimap container.

filter_none

edit
close

play_arrow

link
brightness_4
code

// C++ function for illustration
// multiset::count() function
#include <bits/stdc++.h>
using namespace std;
  
int main()
{
  
    // initialize container
    multimap<int, int> mp;
  
    // insert elements in random order
    mp.insert({ 2, 30 });
    mp.insert({ 1, 40 });
    mp.insert({ 2, 60 });
    mp.insert({ 2, 20 });
    mp.insert({ 1, 50 });
    mp.insert({ 4, 50 });
  
    // count the number of times
    // 1 is there in the multimap
    cout << "1 exists " << mp.count(1) 
         << " times in the multimap\n";
  
    // count the number of times
    // 2 is there in the multimap
    cout << "2 exists " << mp.count(2) 
         << " times in the multimap\n";
  
    return 0;
}

chevron_right


Output:

1 exists 2 times in the multimap
2 exists 3 times in the multimap


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 :


Be the First to upvote.


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