Japt -h, 7 bytes

â £kX â

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##Explanation: â £kX â â // Get all unique items from the input £ // Map X through the results kX // Remove X from the input â // Get unique items -h // Return the last item

Japt -h, 7 bytes

â £kX â

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Explanation:

â £kX â
â         // Get all unique items from the input
  £       // Map X through the results
   kX     //   Remove X from the input
      â   //   Get unique items
-h        // Return the last item

Japt -h, 7 bytes

â £kX â

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Japt -h, 7 bytes

â £kX â

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##Explanation: â £kX â â // Get all unique items from the input £ // Map X through the results kX // Remove X from the input â // Get unique items -h // Return the last item

Japt -g, 5 bytes

â £kX

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Japt -h, 7 bytes

â £kX â

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