Odd Digits Even Digits

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Count of integers in a range which have even number of odd digits and odd number of even digits ###Input: - First line will contain $T$, number of testcases. Then the testcases follow. - Each testcase contains of a single line of input, two integers $L, R$. ###Output: For each testcase, output in a single integer $N$ which is the number of integers in the given range that satisfy the

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solution.cppC++17

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