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Duplicate Elimination Algorithms

This activity asks you to detect and remove duplicate elements from arrays in various different circumstances. The lower levels are relatively easy, but the problem becomes more difficult as you go higher.

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Contents

After you click the "Start Activity" button above, you will be asked questions in the following areas:
  • Find a Duplicate - Array of integers
  • Eliminate Duplicates - O(n) solution
  • Eliminate Duplicates - Larger Than Memory

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