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📘 Keep sorting from meaning one algorithm

Sorted data makes search cheap; unsorted data does not. Mergesort, quicksort, binary search, and hashing are tools — not one universal winner.

3
lessons
~15 min
to learn
Adults
level
Start the course →

What you’ll learn

  1. Why order paysLink sorting cost to cheaper search.Order is an invariant you must maintain.
  2. Sort familiesCompare major sort families and trade-offs.Guarantees, space, and pivots differ.
  3. Search that matches the structureMatch search tools to structure.Binary search and hashing answer different questions.

Grounded in trusted sources

  • Cormen et al., Introduction to Algorithms — sorting/search chapters
  • Sedgewick and Wayne, Algorithms — analysis and sorting
  • Mergesort / quicksort comparison primers
  • Binary search boundary-condition notes
  • Hash table membership primers
  • Stability in sorting — teaching notes

Every Wunder lesson is built from real, reputable sources — never invented.

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