Hashmap (std::unordered_map): O(1) lookup, O(1) insert, O(1) traverse, large data and high constant

Hashmap (std::unordered_map): O(1) lookup, O(1) insert, O(1) traverse, large data and high constant

This is a prototype knowledge-node page generated from the pasted CP topic map.

• Branch: String
• Parent: Suffix Tree
• Depth: 3

This page keeps the topic node compact while CP4CPP builds canonical educational content.

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