You have 10 red and 10 black marbles. In how many ways can you put the 20 marbles in a row so that no more than two marbles of the same colour lie next to each other? An example of…

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Programming and software development in a team

You have 10 red and 10 black marbles. In how many ways can you put the 20 marbles in a row so that no more than two marbles of the same colour lie next to each other? An example of…

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