Avenir Strings

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Chef is playing a game which contains a binary string. He can perform one operation only: - Toggle the i_th bit of the string (0 to 1 or 1 to 0) By performing operations on the string (can be zero times), you have to convert the string with no adjacent bit being the same. Can you help chef ? ###Input: - First line will contain $T$, number of test cases. Then the test cases follow.

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solution.cppC++17

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