← CSES Better

Pareidolia

USACO · 2023 · US Open · silver-3

Open official problem ↗
Ask AI

Open a hint-first prompt in a new AI chat. Grok may ask you to confirm before sending.

Open Claude Desktop

greedy · simulation

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

sample trace

Pareidolia: greedy walkthrough

Pareidolia: use the linked editorial?s greedy, simulation idea on the published sample, then verify the displayed output.

Published inputbessiebessie abcdefghssijebessiemodelAlgorithm ideaProcess choices in the order justified by the editorial and maintain the invariant that each accepted choice remains safe.task resultExpected output14 28
  1. 1

    Order

    Arrange candidates by the criterion used by the task?s greedy strategy.
  2. 2

    Choose

    Accept the next locally safe option while preserving the feasibility invariant.
  3. 3

    Finish

    Read the accumulated result and check it against the sample output.
  4. 4

    Verify the sample

    Use the published sample output to check the result of this idea on the displayed input.
Tools
1
2
3
4
5
6
7
8
9
10
11
12
Draft saved locally
|12 lines, 156 chars

Run output

Run your code to see output.