unordered_map c++ header file code example
Example 1: header file for unordered_map in c++
#include<unordered_map> //is the stl for unordered map
Example 2: unordered_map header file c++
#include<unordered_map>
#include<unordered_map> //is the stl for unordered map
#include<unordered_map>