Friends with Problems

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Sneha is a programmer and loves solving problems. One day, Sneha's friend Prem came to her with a problem. Prem told Sneha he had a binary string whose copy was stored in n files but his drive got corrupted and some 1s got replaced with 0 or 2 and some 0s with 1 or 2. As Sneha doesn't know anything about the original string, she decided to print all the binary strings possible. She assumed that i

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solution.cppC++17

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