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Practice

Algorithms Lab

⭐⭐ intermediate~40 min of coding3 challenges

Two-pointer pairing, window shrinking, prefix-map subarray counting — patterns over memorized answers.

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What you will practice

  1. Sorted Pair Sum⭐⭐ intermediate
  2. Longest Window with K Distinct⭐⭐ intermediate
  3. Prefix Sums & Range Queries⭐⭐ intermediate

Need the concept first? Re-read the lesson.