Even Dillema

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Problem description. A digit string of length K is defined as a string of K digits, for example : 7017, 1044, 0172, 3001 are digit strings where K = 4. Find the number of digit strings of length K that can be made where there will be an even number of zeros modulus 1000000007 (109 + 7) Note: Also consider 0 zero's as even. Input The first line of input consists of one integer T i.e the number

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solution.cppC++17

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