When I couldn't solve problems on my own, I would recreate the solutions from one of these resources:
- https://www.youtube.com/@CSJackie/featured | @CSJackie
- https://www.youtube.com/playlist?list=PLnNm9syGLD3z5MSpszQaN5kinAELELnLP | @HyperNeutrino
- https://www.youtube.com/@jonathanpaulson5053/featured | @JonathanPaulson
- https://www.youtube.com/playlist?list=PLJt6nPUdQbiTvSFJS4-PiDoOfMETbBxb6 | @0xdf
- https://www.youtube.com/playlist?list=PLsqh-jhhTL28TNeqgliN5dTqMQgR0Yd61 | @womogenes (William Y. Feng)