I haven’t coded a b-tree since school. However, I do use my knowledge of b-trees on occasion when deciding on an indexing strategy in my database schema, for ex

I haven’t coded a b-tree since school. However, I do use my knowledge of b-trees on occasion when deciding on an indexing strategy in my database schema, for example. Same is true for a hash map… I basically never implement them but my basic understanding of them lets me write much more efficient code, on occasion.