Comments by "z08840" (@z08840) on "ForrestKnight" channel.

  1. it's not a proper definition of hash table - you gave a definition of associative array (or dictionary) - hash table uses data itself to generate an index (more proper name than key) - the Java's use of name HashTable is misleading - it's actually a hash map - i.e. it's maps keys' hash to values
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  2. wrong definition of tree - you gave a definition of directed tree, when proper definition is that tree is a connected acyclic undirected graph - apparently you are mistaking and mixing data structures with specific implementations - for example binary search tree is an undirected binary tree data structure specifically sorted by value, while RBtree is a specific implementation of binary search tree... total mess
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