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Practice

Array lab: two passes, write indices, safe removal

⭐⭐⭐ advanced~60 min of coding6 challenges

Six problems where the index discipline is the whole difficulty.

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What you will practice

  1. Second distinct maximum⭐⭐⭐ advanced
  2. Remove failing scores, count them⭐⭐ intermediate
  3. Dedup a sorted array in place⭐⭐⭐ advanced
  4. Rotate right by k⭐⭐⭐ advanced
  5. Mode with a defined tie-break⭐⭐⭐ advanced
  6. Interleave two arrays⭐⭐⭐ advanced

Need the concept first? Re-read the lesson.