Header file bits/stdc++.h should be excluded from the program

[bogdasar1985]

Why?
https://stackoverflow.com/questions/25311011/how-does-include-bits-stdc-h-work-in-c

And look at what is inside of this file:
https://gcc.gnu.org/onlinedocs/gcc-4.8.0/libstdc++/api/a01541_source.html

Are you realy need all of that?

This is unnecessary garbage that slows down the build of the program.

Also it is not a part of C++ standard, but GCC/MinGW specific thing and the reason why project can't be compiled in other compilers like MSVC, what is important.