Challenge: Word Formation Using a Hash Table

Try to solve the Word Formation Using a Hash Table problem.

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Statement

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

Constraints:

  • 2 ≤\leq wordsArray.length ≤103\leq 10^3

  • 1 ≤\leq wordsArray[i].length ≤20\leq 20

  • 2 ≤\leq target.length ≤40\leq 40

  • All words consist of lowercase English letters

Examples

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