Google hashcode 2021 problem

1

Traffic Signaling hashcode 2021 problem here

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2

Have you a solution?

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3

If any one have solution of this hashcode problem please send any link or code or github link,
I want to learn how to approach this type of problem.

4

There is no “standard” solution, per se. This is supposed to be an optimisation problem, so you can just ask for “better” solutions

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