int main(void) { char *str = "This is a string"; printf("%d\n", count_alpha(str)); return 0; }
int main(int argc, char *argv[]) { if (argc == 2) count_alpha(argc, argv); printf("\n"); }
int main(void) { char *str = "This is a string"; printf("%d\n", count_alpha(str)); return 0; }
int main(int argc, char *argv[]) { if (argc == 2) count_alpha(argc, argv); printf("\n"); }