Why we use std namespace

Answer 1

Why don't you finish C++ Tutorial on SL? 👍
It is a container for a set of identifiers. It provide a level of direction to specific identifiers, thus making it possible to distinguish between identifiers with the same exact name. For example, a surname could be thought of as a namespace that makes it possible to distinguish people who have the same given name.
For further details:
https://www.geeksforgeeks.org/namespace-in-c/

Answer 2

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