Can anyone share how to improve your thinking ability? For example, what are some better methods or techniques for thinking structure?

Thank you very much for your help!

Hello everyone!

I recently wanted to use a concentrated period of time to improve my algorithm level, and planned to complete a set of classic question sheets within 50 hours. Are there any recommended question sheets that are composed of some particularly classic questions? It is best to have high-quality questions, wide coverage, and significantly improve algorithm capabilities.

If you have experience or special recommendations, I hope you can share them!

Thank you so much!