Which is valid?

Question

https://code.sololearn.com/cLxHts0KbT43/?ref=app
https://code.sololearn.com/c8D7cn4o0lL8/?ref=app

when run these codes I get error.. using codeblock.. type not defined.. something like that

Answer 1

I guess the second code doesn't work because Sololearn uses an old C version, where structs are implemented differently. For Codeblocks you could try using a newer C version as well, like C11, but the first code should work anyway

Answer 2

thanks