Monica and her Crush

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Monica has a crush on Ross's friend and wants to go out with him. But he is a very geeky person and wants Monica to solve his Word Game for going out. The game contains a string $S$ consisting of uppercase Latin letters $('A'-'Z')$. Now Monica is given $N$ words$(A_1, A_2,..., A_n)$ arranged vertically one below the other. The rules of the game are: 1. She can swap two consecutive letters

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solution.cppC++17

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