Remove white space at the end of the output in C

Question

The following code is for printing the elements of a matrix in spiral order. The program works fine. The problem, however, is that the online compiler against which I\'m checkin

Answer 1

You need to suppress the space when you don't need one. You can do it like this:

Add these declarations:

char *format = "%d";
int first_number = 1;

Add this after the first printf:

if (first_number) {
    /* Now we want a space between numbers */
    first_number = 0;
    format = " %d";
}

Change your printf:s to use the new variable:

            printf(format, ...);