Since the CCC is approaching fast, alextrovert and I have prepared a practice contest modeled after the CCC with the same format and problem style.
The format is a 3-hour timed contest which you may start at any time today or tomorrow. We tried to make the difficulty level a bit higher than the real CCC so we won't disappoint contestants who did well on this practice contest.
You can find the contest here (Senior is harder, Junior is easier): http://wcipeg.com/contests
So far, nobody has gotten a perfect score on the Senior contest yet. Can you do it? (Confession: actually, the main reason for me posting this contest here is because I spent a lot of time preparing Senior #5, and nobody solved it.)
In case you don't have a wcipeg account but you have a DMOJ account or would like to try upsolving the problems after your timer ends, the contest will also be at DMOJ.
Thank you for your attention!
What's the estimate on difficulty level relative to international contests?
If we go by Codeforces scale, the Mock CCC (Senior) has problems ranging from Div2 A to Div1 E (maybe), with an gradual difficulty increase between. Similarly, the Mock CCC (Junior) has problems from Div2 A to Div2 D. Most, if not all, of these problems are OI-style (as CCC is Canada's OI).
It's modeled after the real CCC, so we tried to use the real CCC's difficulty scale (http://www.cemc.uwaterloo.ca/contests/computing/details.html#format).