I haven't implemented data structures as of now on any of the codechef problems. can someone suggest me some questions that are available on codechef that are based on data structure i.e trees,undirected graphs,directed graphs,path matrix,shortest path algorithms...? The difficult of problems should be from Easy>Medium as such. Help will be highly obliged. asked 06 Oct '12, 00:22

http://www.codechef.com/problems/HOMDEL is a pretty straightforward shortest path problem (in this case uses algorithm of Floyd). answered 07 Oct '12, 06:35

http://www.codechef.com/problems/TWSTR is an easy problem. I coded XYZ data structure for this problem, for the first time in my life. Its better if you discover XYZ yourself;) answered 07 Oct '12, 16:38

@vinayak grag the problem you mentioned http://www.codechef.com/problems/TWSTR can be done using arrays..I couldn't figure out which data structure you are talking about..can u pls help??? answered 08 Oct '12, 23:09
I was referring to Trie. I choose it just to try it, so I was hoping you would also look for some new data structure for solving the problem.
(10 Oct '12, 01:19)
okies i got it..I will try to implement the question using it also..thanks
(11 Oct '12, 00:23)

+1 Your question can be quite useful for beginners, looking to practice Data structures.
yup it will really help..