Feedback for PLUS2MINUS1 problem

Problem Link: PLUS2MINUS1 Problem - CodeChef


Why all my written code is removed?
every single question that I do on the previous day.

Did you login from another browser or device?

No, Not at all. I didn’t remove any of my written code.
Sometimes I want to see my written code to understand the concept when solving any question but one day when I check my written code, it didn’t there.