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Quick Summary
Filter out messages containing any forbidden keyword in their text body.
Keyword matching is case-insensitive and requires exact space-delimited token boundaries.
Return remaining safe messages while preserving their original order.
What This Tests
String tokenization and boundary awareness
Case normalization techniques
Constant-time lookup using hash sets
Early-exit optimization during iteration
Common Patterns
Hashing
Trie
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Acceptance Rate
100.0%
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Python3
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Input
messages =
unsafeWords =
Output
Expected
