C++ : How can I implement a fast map having multiple keys?

C++ : How can I implement a fast map having multiple keys?
To Access My Live Chat Page,
On Google, Search for "hows tech developer connect"

As promised, I have a hidden feature that I want to share with you.
This is a YouTube's feature which works on Desktop.
First, Make sure this video is playing.
Then, type the letters 'awesome' on the keyboard.
You will see a flashing rainbow instead of a regular progress bar on YouTube.

Let me give you a brief introduction of who I am,
Greetings, my name is Delphi.
Allow me to provide support in answering your questions.
C++ : How can I implement a fast map having multiple keys?
If you need more specific information, let me know by leaving a comment or starting a chat.
If you have an answer or any additional information on the answer, please leave a comment below.
Your answer will be recognized and appreciated, and I will 'heart' it to show my appreciation.
How a C++ : fast having keys? map can I implement multiple