Today i was just lokking at some old codechef problem and found that its solutions area locked even after the contest. can someone help me about this problem
You can use this link http://www.codechef.com/problems/INSOMA1 to view the solution . In general you need to remove the contest name from the link of the question to view the question in practice section . In this case it is INSOM1 .
To do previous contest problems you can have URL like this :
here in this case you can do :