![]() ![]() Maps are typically implemented as binary search trees.Ĭontainer properties Associative Elements in associative containers are referenced by their key and not by their absolute position in the container. ![]() The mapped values in a map can be accessed directly by their corresponding key using the bracket operator (( operator). Map containers are generally slower than unordered_map containers to access individual elements by their key, but they allow the direct iteration on subsets based on their order. Internally, the elements in a map are always sorted by its key following a specific strict weak ordering criterion indicated by its internal comparison object (of type Compare).
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