In C++, a multimap is an associative container that is used to store elements in a mapped fashion. Internally, a multimap is implemented as a red-black tree. Each element of a multimap is treated as a pair. The first value is referred to as key and the second value is referred to as value. Multimap is quite similar to a map but in the case of a multimap, we can have multiple same keys. Also, we cannot use square brackets () to access the value mapped with a key. Like a map, keys of the multimap are sorted in ascending order by default.
#oop in c# #object oriented programming in c# #object oriented concept in c# #learn oop concept #advance c# #pass method as parameter using c#
In this article, we’ll take a look at using pair in C++ Standard Template Library (STL).
This is quite a useful container, which serves to reduce the pain of working with a single return type.
Similar to a tuple in Python, the std::pair template class is the C++ way of having multiple objects in one variable.
Let’s look at how we can use this, use some illustrative examples!
#c++ #c #c# #programming-c
Pair In C++ Example is today’s topic. PAIR is a container that is present in the STL library of C++, which consists of two data elements or objects. The pair container is a simple container defined in header consisting of two data elements or objects.
The first element in the pair is referenced as ‘first,’ and the second element is referenced as ‘second’.
Pair is heterogeneous i.e. it allows to store a variable of different data types.
Pair in C++ can be assigned, copied, and compared.
For accessing the elements, the user can use a variable name followed by a dot operator followed by the keyword first or second.
An array of objects allocated in the map are in pair by default in which all the ‘first’ elements are unique keys associated with their ‘second’ value objects.
#c++ #c #c#
#oop in c# #object oriented programming in c# #object oriented concept in c# #learn oop concept #advance c# #generics type example in c#