int main() { char* n_endptr; char* n_str = readline(); int n = strtol(n_str, &n_endptr, 10);

if (n_endptr == n_str || *n_endptr != '\0') { exit(EXIT_FAILURE); }
 static const char *s[]={"one","two","three","four","five","six","seven","eight","nine"};
int x;
scanf("%d",&x);
if(x>=1 && x<=9)
   printf("%s",s(x-1));
else
    printf("greater than 9");
// Write Your Code Here

return 0;

}

can anyone help me to find why am getting error ?