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multimap maxsize() in C++ STL

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  • Last Updated : 22 Jun, 2022

The multimap::max_size() is a built-in function in C++ STL which returns the maximum number of elements a multimap container can hold.

Syntax:  

multimap_name.max_size()

Parameters: This function does not accept any parameters.

Return Value: This function returns the maximum number of elements a list container can hold.

C++




// C++ program to illustrate
// multimap::max_size()
#include <bits/stdc++.h>
using namespace std;
 
int main()
{
 
    // initialize container
    multimap<int, int> mp1, mp2;
 
    cout << "The max size of mp1 is " << mp1.max_size();
    cout << "\nThe max size of mp2 is " << mp2.max_size();
    return 0;
}

Output: 

The max size of mp1 is 461168601842738790
The max size of mp2 is 461168601842738790

 

Time Complexity – Constant O(1)

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