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Convert each word into its Morse-code string by concatenating the fixed per-letter encodings, and return how many distinct transformations appear across the list — a simple mapping + deduplication problem over small inputs.
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Oscar Health
Leetcode 804. Unique Morse Code Words
Reported Mar 14, 2026 · 2 source reports
SENIOR, SENIOR_MANAGER
Source snapshot: Nov 12, 2026
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