It may sound strange that knowing a lot about iOS and having some experience in .net, I am a newcomer to C. Somewhere I got this target to find average of n numbers without using
scanf is really needed for this.
The obvious alternatives would be to read the input with something like
fgets and convert from characters to numbers with something like
On the output side, you'd more or less reverse that, converting from numbers to characters (e.g., with
itoa which is quite common, though not actually standard), then printing out the resulting string (e.g., with fputs).