practising problems under various paradigms

Is there any online judge where there is a clear classification of the problems according to various paradigms to be used to solve the problem for practising those paradigms? Or anything close to the requirement would also do . thanks . :slight_smile:

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yeah you can do practice at lightoj.com,that good for practice bcz problem are categories

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You can use Codechef tags to find classification of problems based on author, area and difficulty. Codeforces also provides great classification of problems using tags. Also you can see Ahmed-aly which provides classification of problems from various sites like SPOJ,Codeforces, Topcoder and others.

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http://cerberus.delos.com:790/usacogate
It’s called USACO TRAINING PROGRAM

http://hackerank.com/