Why sololearn doesnt include dos header file?

Question

dos header file give the tons of interestng and full stuff
https://code.sololearn.com/cVHh4UOxV82P/?ref=app
https://code.sololearn.com/cVHh4UOxV82P/?ref=app

Answer 1

There are equivalent libraries for sound in Linux, you can find it in Google.

Answer 2

dos.h is library from DOS system. Probably server is based on Linux and dos.h doesn't work on Linux.

Answer 3

but there is will there's a way he or anybody can find solutions please find !.😀

Answer 4

but it is way to the get did function in programming as usual the windows.h is also not working at that only seen the output no sound heard