still facing the same problem, access denied, please fix it asap…
again same problem access denied
Facing this problem second time
not able to access problems even after logging in 
please resolve it codechef!!!
Hello @all,
Guys, I also had the same problem a few hours ago, but, my tip for you is that you open up several problems in individual tabs in your browser and spend your time either testing them on large inputs to make sure the answer is correct, or just reasoning about a different problem… 
I say this because there’s no need to rush admins to fix this issue so you can submit incorrect solutions… Plus, as we have a 10-day timespan, if people felt like they were affected by this issue in a serious way, I’m sure an extra day can be given in the end, to make up for these downtimes
All the best,
Bruno
Hi All, We regret the inconvenience. This is a pertinent issue which happens intermittently. We have fixed it temporarily, until we find a permanent fix. Kindly let us know whenever you face the issue.