Strange Planet

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Scientists have discovered a new planet in a faraway galaxy which has water on it's surface. But water there has strange properties. Unlike Earth, Ripples created by falling drops are not circular but only travel on x-axis and y-axis. In question water surface is represented by a matrix $mat$ of size $r$ rows and $c$ columns in which water is denoted by "0" and falling drop by "1". You have to

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solution.cppC++17

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