hi.. :) i'm a first year college student and just starting with turbo c. We have a project that is to be pass on August 29. I hope someone can help me cause i'm really having a hard time with this. I have to make an exe. of the program that gives three options to the user. First is to convert decimal to binary, hexadecimal to decimal, and octal to binary. After converting, the user must have an option whether to  try again,  go back to the main menu exit the program. I also tried to include conio.h but it says there "unable to open include file conio.h". what must be the reason for that error?
please help me :(