Negative rating for July Long One 2022

Hi everyone, I have solved 4 out of 9 questions in the July long challenge https://www.codechef.com/JULY221D but then also I have got negative rating of -162.
Am I doing something wrong? Or I’m supposed to solve all the questions to have positive rating?

@psycho376 - Rating depends on other users similar to you and how many questions they solved. Hence your rating can drop even after solving 4 out of 9