Tag Archives: cpp-multimap

Joining two different tables on their matching columns can be done using nested loops, but a more efficient and scalable way is to use multimaps.… Read More
Given a Binary Tree, the task for each level L is to print the Lth node of the tree. If the Lth node is not… Read More
Pairs in C++: The pair container is a simple container defined in <utility> header consisting of two data elements or objects. The first element is… Read More
Array: An array is a collection of items stored at contiguous memory locations. The idea is to store multiple items of the same type together.… Read More
Given a binary tree of N nodes, the task is to print level order traversal in a spiral form. In spiral form, nodes at the… Read More
Given a map, the task is to swap the Keys of this map with its values, in C++. Examples: Input: map = {'e', 1 },… Read More
The function std::unordered_multimap::insert() is a built-in function in C++ STL that extends container by inserting new element in unordered_multimap. This function increases container size by… Read More
The ‘=’ is an operator in C++ STL which copies (or moves) an unordered_multimap to another unordered_multimap and unordered_multimap::operator= is the corresponding operator function. There… Read More
Map stores the elements in sorted order of keys. Now if we want to traverse it in reverse order we will use reverse_iterator of map.… Read More
This is the part of Standard Template Library(STL) of C++. To use this STL, use Namespace: std and include “map” header file in the program.… Read More
The multimap::get_allocator() is a function in STL in C++ that returns the copy of allocator object associated with this multimap. Syntax: multimap.get_allocator() Return value: This… Read More
The std::multimap::key_comp() is an inbuilt function in C++ STL which returns a copy of the comparison object used by the container.By default, this is a… Read More
The multimap clear() function is an inbuilt function in C++ STL which is used to remove all elements from the multimap container (which are destroyed),… Read More
The multimap::value_comp() method returns a comparison object that can be used to compare two elements to get whether the key of the first one goes… Read More
The multimap::empty() is a boolean type observer function in C++ STL which tells whether the container is empty or not. This function returns true when… Read More