Permutations and Combinations

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Permutations and Combinations Alice and Bob start playing a new game. Alice writes 2 numbers - N and K. She asks Bob to find an integer which is N digits long such that the absolute difference in the adjacent digits is less than or equal to K. Bob realizes that a lot of integers satisfy this condition. Can you help Bob to find the total number of N digit integers which satisfy the condition set b

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solution.cppC++17

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