Caesar Cipher

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In the `ROT-K` cipher, each character in the string is shifted a fixed number of positions **down** the alphabet. The value of `K` represents the number of positions to shift. For instance, in `ROT-2`, each character is shifted $2$ positions. The `ROT-2` cipher of the string `code` is `eqfg`. Note that the rotation is performed in a **circular** manner, meaning that if the character `z` is shifte

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solution.cppC++17

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