Concatenate Numbers

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There are $N$ strings given and each will contain digits only from 1,2,3,4 and 5. You are supposed to find the number of strings that contains all the 5 digits after concatenating any two strings. ###Input: - First line contains the numbers of test cases T. - First line of each test case contains an integer N. - Next N lines contain various strings. ###Output: For each testcase, pri

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solution.cppC++17

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