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Here you can find 12 *practice-ladders of codeforces problems. And daily **practice-contests.

* A practice-ladders is just a list of problems, (for example, to unlock a problem you must solved all previous problems of that ladder). All problems are taken from Codeforces Problemset, sorted according to difficulty of problems (easiest problem comes first).
** practice-contests are created from :Here (Codeforces Mashups Contests).

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