I have seen a lot of good tutorials on codechef but I am unable to find them properly as with time, new questions overcrowd the forum (discuss.codechef). I have seen a couple of discussions on required algorithms and data structure for competitive coding. Has there been any discussion where links to all the tutorials (on codechef only) is posted? If so, kindly provide the link.
Here are a few (recent articles) I found. I am sure there are much more available.