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Pareidolia

USACO · 2023 · US Open · gold-2

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The organizer’s problem statement is available at the official source link.

sample trace

Pareidolia: sample trace

Trace this official sample for Pareidolia: use the task rules to map the shown input to the expected output.

Published inputbesssie 1 1 5 4 6 1 1 bebesconsiete 6 5 2 3 6 5 7 9 8 1 4 5 1 besgiraffesiebessibessie 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1modelAlgorithm ideaApply the task rule to this published instance, preserving the relationships defined by the statement.task resultExpected output1 4 1 21 2 7
  1. 1

    Read the sample

    Use the official example for Pareidolia as the concrete instance.
  2. 2

    Follow the task relation

    Apply the exact rule in the official statement to the displayed values.
  3. 3

    Check the result

    Verify that the final value matches the published expected output.
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