cpp-pair Archives - GeeksforGeeks

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In C++, std::pair is the data type that stores the data as keys and values. On the other hand, std::vector is an STL container that stores the collection of data of simila...read more

In C++, a pair is used to combine together two values that may be of different data types. Pair provides a way to store two heterogeneous objects as a single unit. In this...read more

In C++, vectors are dynamic arrays that can automatically resize themselves according to the number of elements while pair allows the users to store two heterogeneous obje...read more

In C++, lambda expressions provide an easy way to define anonymous functions inline. They also allow these inline functions to capture some variables from the surrounding ...read more

In C++, STL provides the pair container which allows the user to store two objects that can be of the same or different type as a single unit. On the other hand, the Unord...read more

cpp-unordered_map

In C++, std::multimap stores elements as key-value pairs sorted by keys and there is no way to modify it to sort the elements by value but we can create a workaround to ac...read more

In C++, sets are associative containers that store unique elements. On the other hand, pairs allow the users to store two data of different or the same type into a single ...read more

In C++, a vector of pairs can be converted to a map. This can be useful when you want to create a map from a vector of pairs, where each pair contains a key and a value. I...read more

In C++, a map can be converted to a set of pairs. This can be useful when you want to create a set of pairs from a map, where each pair contains a key and a value. In this...read more

In C++, make_pair() is a standard library function used to construct a key-value pair from the given arguments. The type of the pair constructed is deduced automatically f...read more

In C++, a multimap is a container that stores key-value pairs in an ordered manner. Unlike a map, a multimap allows multiple values to be associated with a single key. In ...read more

In C++, Stacks are a type of container adaptor with LIFO(Last In First Out) type of working, where a new element is added at one end (top) and an element is removed from t...read more

In C++, a pair container is defined inutilityheader that can store two values that may be of different data types so as to store two heterogeneous objects as a single unit...read more

C++ Basic Programs

In C++, vectors are dynamic arrays that can grow and shrink in size whereas a pair is a container that can store two data elements or objects. A vector of pairs, therefore...read more

In C++, a vector of pairs is a common data structure used to store pairs of values. Sometimes, when dealing with pairs we need to sort such vectors of pairs based on a spe...read more