Communication LR

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Problem description. There are N machines arranged in a single line.These machines communicate with each other. Suppose if L wants to communicate with R then it will check whether all the machines in [L,R] are free or not if not then it will not send the message else L will pass the message to its neighbour machine (which is in direction of R) and that neighbour machine will pass the message to

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solution.cppC++17

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