Back to the code : ranking seems too random

We are saturday 23 hours CET, i have submitted my code at 9 AM today, and after the initial ranking up that took litterally hours, my ranking has been coming back and forth all day between 150 et 250 without me doing anything (no new code submission).
I wonder if either :

  • my code is too random (?)
  • the problem is too random
  • the ranking system is bogus

What do you think ?

If 1 guy with a better rank than you submit a new code, you will win a place without doing anything ( same case with 100)

Some match are add for the <300 players, so your AI will figth even if you don’t submit.