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Solution: Word Formation From a Dictionary Using Trie

Explore how to use the trie data structure to determine if a word can be formed by combining two words from a dictionary. Understand trie construction, prefix searches, and how this approach improves search efficiency compared to naive methods. Gain skills to implement and analyze trie-based solutions for prefix and word formation problems in technical interviews.

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Statement

Given a dictionary, find whether a given word can be formed by combining two words from the dictionary.

Constraints:

  • 0≤0 \leq dictionary ≤103\leq 10^3
  • 1≤1 \leq dictionary[i] ≤102\leq 10^2
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