main int k=17; printfd0xnkkk;

There are a few errors in this code. Here is a corrected version:

#include <stdio.h>

int main() {
    int k = 17;
    printf("%d,%o,%x\n", k, k, k);
    return 0;
}

The corrections made are:

Added #include <stdio.h> to include the necessary header file for printf.
Changed main() to int main() to specify the return type of the function.
Added return 0; at the end of main() to indicate a successful execution of the program.
Changed %0 to %o to print k in octal representation.
Fixed the newline character to \n instead of /n.

The output of this program will be:

17,21,11

Explanation of the format string used in printf: