About: Unordered associative containers (C++)

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In the programming language C++, unordered associative containers are a group of class templates in the C++ Standard Library that implement hash table variants. Being templates, they can be used to store arbitrary elements, such as integers or custom classes. The following containers are defined in the current revision of the C++ standard: unordered_set, unordered_map, unordered_multiset, unordered_multimap. Each of these containers differ only on constraints placed on their elements.

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  • In the programming language C++, unordered associative containers are a group of class templates in the C++ Standard Library that implement hash table variants. Being templates, they can be used to store arbitrary elements, such as integers or custom classes. The following containers are defined in the current revision of the C++ standard: unordered_set, unordered_map, unordered_multiset, unordered_multimap. Each of these containers differ only on constraints placed on their elements. The unordered associative containers are similar to the associative containers in the C++ Standard Library but have different constraints. As their name implies, the elements in the unordered associative containers are not ordered. This is due to the use of hashing to store objects. The containers can still be iterated through like a regular associative container. (en)
  • C++程序设计语言中，unordered_map、unordered_multimap、unordered_set、unordered_multiset是标准模板库（STL）提供的一类无序关联容器（unordered associative containers）。是通过哈希表实现的数据结构。无序是指元素的名字（或者键值）的存储是无序的；这与用平衡二叉树实现的元素名字是有序存储的“关联容器”是相对概念。 (zh)
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  • C++程序设计语言中，unordered_map、unordered_multimap、unordered_set、unordered_multiset是标准模板库（STL）提供的一类无序关联容器（unordered associative containers）。是通过哈希表实现的数据结构。无序是指元素的名字（或者键值）的存储是无序的；这与用平衡二叉树实现的元素名字是有序存储的“关联容器”是相对概念。 (zh)
  • In the programming language C++, unordered associative containers are a group of class templates in the C++ Standard Library that implement hash table variants. Being templates, they can be used to store arbitrary elements, such as integers or custom classes. The following containers are defined in the current revision of the C++ standard: unordered_set, unordered_map, unordered_multiset, unordered_multimap. Each of these containers differ only on constraints placed on their elements. (en)
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  • Unordered associative containers (C++) (en)
  • 无序关联容器 (STL) (zh)
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