Cman and the vector field

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A guy named Cman attends the final grade of a high school. One day Cman decided to watch a match of his favorite football team. And, as the boy loves football very much, even more than linear algebra, he forgot to do the homework. Specifically, he forgot to complete his linear algebra tasks. Next day the teacher got very angry at Cman and decided to teach him a lesson. He gave the lazy student

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solution.cppC++17

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