Happy Students

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Suppose students are standing in a queue for the Sunday ice-cream in IISc Mess. They all like ice-cream and each one has some amount of rupees with them. A student gets really upset when there is someone with strictly less money standing in the queue in front of them.The students follow a protocol that anyone can pay 1 rupee (if he/she has it) to the person standing just in front of them and excha

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solution.cppC++17

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