Secrets

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Chandu and chandni Talk on phone for a long time daily. Being afraid that someone will hear their private conversation chandu suggested chandni an idea. He suggested that he will talk only with encrypted strings with her and only she would know, how to decrypt the string. So that even if someone hears, He/She would not be able to anticipate their conversation. Rules of encryption are as follows:

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L1 Observation

L2 Technique

L3 Approach

L4 Pseudo-code

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L5 Full solution

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solution.cppC++17

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