Extra ( namespace risk )

I am here just for training to explain some stuff, guys)

In my head - namespace is a shortcut that can help to avoid re-enter "std::’ prefix.
But risk is in using more than one namespace…

“cout” can simply be miss-using and output he wrong data.
Clash namespace.

To avoid this problem/ risk don’t be such a lazy douche - use std::cout)

Thank you for attention!

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