Which Of The Following Code Will Give An Error #1140

 #include <stdlib.h> int main() { printf("%d\n", srand()); return 0; } 

 #include <stdlib.h> int main() { srand(time(0)); printf("%d\n", rand()%50); return 0; } 

 #include <stdlib.h> int main() { srand(1); return 0; } 

 #include <stdlib.h> int main() { printf("%d\n", rand()%50); return 0; }