Lovely Numbers of Charan

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Charan is obsessed with K-Lovely numbers and hence gave you a problem on the same. A number is said to be K lovely if absolute difference between any two consecutive digits is at most K. Help Charan find K-lovely numbers in a range L and R (inclusive). Note : All single digit numbers are K-lovely (if they fall in range) Input First line will contain T, the number of test cases. Then T test

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L1 Observation

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solution.cppC++17

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