C++ STL의 unordered_multimap size() 함수는 정렬되지 않은 맵의 요소 수를 반환합니다.
알고리즘
Begin Declare an empty map container m. Performing reserve function to restrict the most appropriate bucket_count of the map container. Insert values in the map container. Print the size of the unorderd multimap container by using the size() function. End
예시 코드
#include<iostream> #include <bits/stdc++.h> using namespace std; int main() { unordered_map<char, int> m; // declaring m as empty map container m.reserve(6); //restricting the most appropriate bucket_count of map container m.insert (pair<char, int>('b', 10)); // inserting some values m.insert (pair<char, int>('a', 20)); cout << "The size is: " << m.size(); //printing the size of unordered multimap container by size() function. return 0; }
출력
The size is :2