Can we see author solutions of codechef contest ?
yes! You can see after the end of contest!
You can see the solution, if the Author/Setter shares his/her code with you (usually via an Editorial). Otherwise, you can just have a look at one of the correct submissions on that problem AFTER the contest is over.
Isn’t this what “Setter’s Solution” in Editorials are?
Ya, I was also on the same lines of thinking.