Lights Out

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Johnny is playing Lights Out, an electronic game consisting of an NxN grid of lights. Initially, each light may be on or off. Pressing a light will toggle it and the lights non-diagonally adjacent to it. The object of the game is to try and get all the lights turned off. It is not always possible, and what's more, Johnny's game is faulty. Pressing some lights has no effect. (They can still be turn

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solution.cppC++17

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