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Practice

Collections Lab

⭐⭐ intermediate~40 min of coding3 challenges

Comparator composition, heap scheduling with stable ties, and sealed vs live collection exposure.

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What you will practice

  1. Compose Comparators⭐⭐ intermediate
  2. Urgency Queue with a Heap⭐⭐ intermediate
  3. Seal the Registry⭐⭐ intermediate

Need the concept first? Re-read the lesson.