I tried that by choosing the Assembler language in the language listbox. It seems it doesn't try linking with c libraries.
And, there is no way to specify that too. But just int 0x80 calls work.
But the other Assembler option (which uses GAS) , can link to c library , so it uses printf, scanf etc.
Yes.. send a mail to their support team- contact@ideone.com
Thanks,
Mathi.