The Maths Lock

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Jimmy’s dad was a great scientist. He designed a special lock only for mathematicians. The lock had a screen where a random number B appears everytime someone tries to open the lock. The user needs to enter the total number of positive integers N that satisfy the condition, $reverse(N) = N + B$. The lock opens only if the answer is correct. Jimmy’s dad asked him to try if he can open the lock. Hel

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solution.cppC++17

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