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Majority Opinion

USACO · 2024 · January · bronze-1

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sorting

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Majority Opinion: sorting walkthrough

Majority Opinion: use the linked editorial?s sorting idea on the published sample, then verify the displayed output.

Published input5 5 1 2 2 2 3 6 1 2 3 1 2 3 6 1 1 1 2 2 2 3 3 2 3 2 2 1modelAlgorithm ideaSort by the task-relevant key so the ordering exposes candidates that can be checked locally.task resultExpected output2 -1 1 2 3 -1
  1. 1

    Order

    Sort items by the comparison key used by the task.
  2. 2

    Scan

    Inspect the ordered neighbors or groups and update the candidate result.
  3. 3

    Finish

    Use the final aggregate or selected item as the answer.
  4. 4

    Verify the sample

    Use the published sample output to check the result of this idea on the displayed input.
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