A héron-képlet jó, a héron-képlet szép

Signed-off-by: Hunman <sanyi.eve@gmail.com>
Merge branch 'master' of https://github.com/oFrick/BugFree.git
Merge branch 'master' of https://github.com/oFrick/BugFree.git
Miért double ha int?

Signed-off-by: Hunman <sanyi.eve@gmail.com>