Question

http://ideone.com/DVCmd I've got two functions: one that turns an int array to a string, and another that prints that string.

Anyway I can improve my code (make the string as small as possible, print it as fast as possible)?

Answer 1

Instead of doing enum { LEN = 10 } you can do sizeof(A) / sizeof(int), saves you counting out the elements of the array.

Obviously you could make the string smaller by calculating how many digits each number is, but I'm not sure how to do that offhand.

Answer 2

something like this would be the simplest:

int n=num, digits=0;
while(n>0) { digits++; n/=10; }

Answer 3

thanks guys