Trie Ladder¶
Who This Is For¶
Use this ladder when you want to move from one-string algorithms into multi-string prefix structure and dictionary-style queries.
Warm-Up¶
- insert and query words
- count prefix frequency
Core¶
- prefix dictionary queries
- structural ancestor only; xor variants now live in Binary Trie / XOR Queries
Exit Criteria¶
You are ready to move on when you can:
- design node fields intentionally instead of copying a template blindly
- distinguish pass counts from terminal counts
- choose between trie and sorting plus binary search
- know when to hand off from plain trie to Binary Trie / XOR Queries