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Tag Archives: cpp-unordered_map

unordered_map::empty() function is used to check whether container size is zero or not. If container size is zero then it return TRUE otherwise it return… Read More
unordered_map::clear() function is used to remove all elements from the container. When this function is applied to unordered_map its size becomes zero. Syntax: unordered_map_name.clear() Parameters:… Read More
The unordered_map::cend() is a built-in function in C++ STL which returns an iterator pointing to the position past the end element in the container or… Read More
The unordered_map::emplace_hint() is a built-in function in C++ STL which inserts the key and its element in the unordered_map container with a given hint. It… Read More
The unordered_map::hash_function() is a built in function in C++ STL which is used to get the hash function. This hash function is a unary function… Read More
unordered_map::key_eq() is a built-in function in C++ STL which returns a boolean value according to the comparison. It depends on the key equivalence comparison predicate… Read More
The std::unordered_map::swap() is a built in function in C++ STL which swaps the elements of a container to an other container. After the call of… Read More
The std::unordered_map::rehash() is a built in function C++ STL which sets the number of buckets in container to n or more. Syntax  void rehash( size_type… Read More
The unordered_map::load_factor() is a built-in function in C++ STL which returns the current load factor in the unordered_map container. The load factor is the ratio… Read More
The std::unordered_map::operator[] is a built in function in C++ STL which returns the reference of value if key matches in the container. If no key… Read More
The ‘=’ is an operator in C++ STL which copies (or moves) an unordered_map to another unordered_map and unordered_map::operator= is the corresponding operator function. There… Read More
The unordered_map::max_size is a built in function in C++ STL. It returns maximum number of elements which unordered_map can hold. Maximum number of elements in… Read More
The unordered_map::max_load_factor in C++ STL is a built in function which is used to get and set maximum load factor in unordered_map. Load factor is… Read More
The unordered_map::max_bucket_count is a built in function in C++ STL. It returns the maximum number of buckets unordered_map container can have. Syntax unordered_map.max_bucket_count() Parameters :… Read More
Given an array arr[] of N integers. The task is to find the sum of the elements which have frequencies greater than or equal to… Read More

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