Wrong answer

please help me why i am getting wrong answer at time of submission although i’m getting right answer at every custom inputs
https://www.codechef.com/viewsolution/49105418 this was the solution

I’m getting this

403

Access denied! You don’t have permissions for this page.

ohh i think because of contest running it was question from YouTube practice the closest divisor just try this question
can u do @aviral311 ??