C Map To Vector

The c++ standard library provides two map data structures, one named, get this, map, the other, unordered_map. If you have a vector of pairs, where the first item in the pair will be the key for the map, and the second item will be the value associated with that key, you can just copy the data to the map with an insert iterator: Using keys as values and their corresponding values as keys) and sorting on the basis of keys.

The map properties are it store elements in sorted form based on the keys, it stores unique keys that can be added or removed but cannot be updated and values corresponding with keys can be duplicated and can be updated. No two mapped values can have same key values. (b) use std::copy and std::back_inserter.

Maps are associative containers that store elements in a mapped fashion.

Just a few explaining comments: It can be any primitive data type such as int, char, float, etc. Aliased as member type vector::value_type. Vector in stl vector is same as dynamic arrays with the ability to resize itself automatically when an element is inserted or.