Jillu and Easy Matrix

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$Jillu$ is prime coder in one of parallel universe. He loves solving the toughest problems but he hates to waste his time in solving easy problems, So he send them in a random parallel universe. This time it was our universe. Being a programmer it is your duty to solve problems of this universe. There will be $T$ test cases and for each test case You will be given a matrix $Z$ with $N$ rows and $

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solution.cppC++17

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