This looks like a fun idea, but 10 seconds are just too short. In those 10 seconds, I have barely realized the structure of the code. Actually reading the code, seeing what it does and spotting for bugs is just not possible in 10 seconds for me.
Not to mention the "bugs" (at least the few I bothered to inspect) consist of:
- missing close-quote
- missing expression in return statement of non-void function
- missing semicolon
Seriously, who cares? If it doesn't even compile (first and third), is it an interesting bug? Not to me. The second is slightly less so, but still not very interesting -- any sane combination of compiler flags will emit a warning about this that you'd have to be an idiot to ignore.
Though in 10 seconds, finding any "real" bugs would be a joke too -- so frankly I don't really see the point.
