June long challenge - difficult

Is it Just me, or did others too feel that the June long challenge for division 2 was a bit too difficult. Usually the first 3 questions are very simple, and another 3 questions are challenging, which would lead me to do about 6 questions per long challenge, but this time i could do only 4. Do you guys feel the same?, and what is the reason for this sudden increase in long challenge difficulty?. Keep in mind I’m new to codechef :).

This was my first codechef long challenge and i could solve only 1 question
after reading the editorial i found that i could solve 3 questions

But the questions are not difficult at all

A similar thread is floating already. Lets funnel the discussion there.