Actually I didn't solve any DP problem. and I didn't know how to update DP about a range. How can I do this? I want To learn DP clearly. plz help me to Visualization on DP Problems. Can you Give Me some simple DP Problems as like 3-5 lines DP code?
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Codeforces (c) Copyright 2010-2026 Mike Mirzayanov
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Do a few basic questions from this basic playlist.
As for the visualisation part you can refer to these tutorials.