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Solution: Word Formation Using a Hash Table

Explore how to check if a target word can be formed by concatenating two words from a list using hash tables. This lesson guides you through inserting words into a hash table, checking all prefix-suffix combinations, and analyzing the time and space complexity of the solution.

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Statement

Given a list of words words_list, determine whether a given target can be formed by combining two words from the list in any order.

Constraints:

  • 2 \leq words_list.length 103\leq 10^3 ...