Updating my correct source

I go to My profile, choose a solved problem, go to "Source code" tab and see the earliest submitted correct solution. Can i clear that source and resubmit my better solution to hang there?

you can't do that, as i know ...

This is not good because first code i posted was yours :))

so what ? you can send your code, too ... :D

I sent mine, but in my profile there remains yours :(