Where can I promote a programming contest?

Question

Programming

Where can I promote a programming contest?

Answer 1

Where there are many programmers.
Look for thematic publics on VK, Facebook or Telegram channels, talk to them about advertising, set up targeted advertising so that your ads are displayed to those who are in groups. Programming sites like habr, toaster, typical programmer.
All sorts of geekbrains, sites to study.

Answer 2

for gde in toster mail Хабрахабр Geektimes Вконтакте Фейсбук
do
    Программисты $gde все на конкурс!!!!
done