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The Art of Problem Solving books are great and have complete solution manuals: https://artofproblemsolving.com/store https://artofproblemsolving.com/store You
by sn9 7y ago
The Art of Problem Solving books are great and have complete solution manuals: https://artofproblemsolving.com/store https://artofproblemsolving.com/store
You could schedule review of concepts and problems you understand with spaced repetition software like Anki to keep them in long term memory. (http://augmentingcognition.com/ltm.html http://augmentingcognition.com/ltm.html)