>For example, linked list, hash table, DFS and BFS, simple sorting. These are a given. You should know these. When I said I cannot memorize solutions, I refer

>For example, linked list, hash table, DFS and BFS, simple sorting. These are a given. You should know these. When I said I cannot memorize solutions, I refer to memorizing solutions to specific Leetcode problems. Doing that for 1-2 problems per main area is doable, but anything more than that is quite hard.