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A cake consists of $N$ pieces arranged in a row. Each piece has one of $M$ distinct flavours (numbered $1$ through $M$) which are available in Chef's kitchen. For each valid $i$, the cost of the $i$-th flavour is $i$ rupees. When Chef bakes a cake, he chooses the flavour of each piece independently and uniformly randomly from these $M$ flavours. After baking the cake, he splits it into several

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solution.cppC++17

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