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[Help Needed] Meta HackerCup 2023 Round1 : Problem C1: Back in Black (Chapter 1)
By decrypt_me, history, 8 months ago, In English

Problem Link : Problem Link : Black in Black

In solution , It is written take unique values in queries and mod with 2 because pressing twice is means doing nothing. I understood but let's say you first pressed 6th button then every 6th button state changes and later on you pressed 3rd button so, it will change every 3rd button states but I want to say that 3rd button pushing also changing the states of 6th button so, pressing count of 6th button is taken twice. Please suggest how count of pressing unique values working.

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8 months ago, # |
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no

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8 months ago, # |
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Auto comment: topic has been updated by decrypt_me (previous revision, new revision, compare).

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7 months ago, # |
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What do you mean by "pressing unique values"?

The official solution is actually telling you to accumulate changes for each button and every kth after, which should anser your doubts that pressing 3rd affecting 6th.

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    7 months ago, # ^ |
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    I mean unique values in queries/operation. Thankyou for your suggestion.

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