The max_size() of unordered_multiset takes the maximum number of elements that the unordered_multiset container is able to hold due to system or It gets the maximum size of the controlled sequence.
Syntax:
size_type max_size() const;
where size_type is an unsigned integral type.
Returns : The member function returns the length of the longest sequence that the object can hold. In short, the maximum number of elements.
Below program illustrate the unordered_multiset max_size function :-
Example 1:
#include <iostream> #include <unordered_set> using namespace std;
int main()
{ // Define the unordered_set
unordered_multiset< int > num{ 1, 2, 3, 4, 5, 6 };
cout << "Maximum size = "
<< num.max_size() << "\n" ;
cout << "Current size = "
<< num.size();
return 0;
} |
Output:
Maximum size = 1152921504606846975 Current size = 6
Complexity :
It takes constant(O(1)) time of complexity to perform an operation.