// p26.9 -z1
#include <stdint.h>

const char * ptr = "informatyk mpabi 0\n";
const char * ptr2 = "indwed mpabi 0\n";

int slen ( char *s ) {

    int n;

    for (n = 0; *s != '\0'; s++)
        n++;

  return n;
}

int main () {


    int x = slen (ptr) ;   
    int x2 = slen (ptr2) ;   

  return 0;
}