Can anyone tell me how to call the the functions in main in the give code?

Question

The following code is a code of static stack which shows some error in for loop and another problem is how to call the functions in main function?
https://code.sololearn.com/cV32a6B8iSN5/?ref=app

Answer 1

If you want to call functions in main, you have to include main in the same file (for sololearn).
Also no conio.h in modern compilers.