Treasure Vault

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A unique code N from a set S={1,2,3,4,5,6,7} is generated to open a vault by a code generator. Due to some error in the 6 digits generated code, every digit of even index number is subtracted by 1 and 2 in case of an odd index number. Find out the correct unique code to open the vault. Note: The correct code is from a set C={1,2,3,4,5,6,7,8,9} and the index number starts from 0. ### Input

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solution.cppC++17

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