Rearrange the gifts

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It's Christmas time, Santa's friends are helping him to arrange the gifts. Franklin is a new member of Santa's group and he too help the others in arranging the gifts. Let n be the number of gifts. Santa has a unique technique of ordering ,he put a number on each gift and then he write the order of the gifts on a piece of paper and give it to his friends .But Franklin being a new member does not

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solution.cppC++17

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