Crypto

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Problem description Sampada is making questions for the Pravega event Crypto. While working on encryption, she has discovered that any cipher (which is a positive integer) which has any substring not divisible by 2 is bad and can be cracked. She has also discovered that any cipher which has a substring divisible by 11 is also bad and can be cracked easily. She believes all other ciphers are good.

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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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