unordered_multimap max_bucket_count() function in C++ STL Last Updated : 08 Aug, 2018 Summarize Comments Improve Suggest changes Share Like Article Like Report The unordered_multimap::max_bucket_count() is a built-in function in C++ STL which returns the maximum number of buckets that the unordered multimap container can have. This is the maximum it can have, it cannot exceed despite the collisions due to certain limitations on it. Syntax: unordered_multimap_name.max_bucket_count() Parameter: The function does not accept anything. Return Value: The function returns the maximum number of buckets possible. Below programs illustrate the unordered_multimap::maximum_bucket_count() function: Program 1: CPP // C++ program to illustrate the // unordered_multimap::max_bucket_count() #include <iostream> #include <unordered_map> using namespace std; int main() { // declaration unordered_multimap<char, char> sample; // inserts key and element sample.insert({ 'a', 'b' }); sample.insert({ 'a', 'b' }); sample.insert({ 'a', 'd' }); sample.insert({ 'b', 'e' }); sample.insert({ 'b', 'd' }); cout << "The maximum bucket count is: " << sample.max_bucket_count(); return 0; } Output: The maximum bucket count is: 1152921504606846975 Program 2: CPP // C++ program to illustrate the // unordered_multimap::max_bucket_count() #include <iostream> #include <unordered_map> using namespace std; int main() { // declaration unordered_multimap<int, int> sample; // inserts key and element sample.insert({ 1, 2 }); sample.insert({ 1, 3 }); sample.insert({ 2, 4 }); sample.insert({ 5, 8 }); sample.insert({ 7, 10 }); cout << "The maximum bucket count is: " << sample.max_bucket_count(); return 0; } Output: The maximum bucket count is: 1152921504606846975 Comment More infoAdvertise with us G gopaldave Follow Improve Article Tags : Misc C++ STL CPP-Functions cpp-unordered_multimap +1 More Practice Tags : CPPMiscSTL Similar Reads C++ Programming Language C++ is a computer programming language developed by Bjarne Stroustrup as an extension of the C language. 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