Arya and the Strings

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Arya Stark is in a fix. Jaqen H'ghar, the Faceless Man, has given her two strings consisting of alphanumeric characters. He asks her to find the number of distinct characters that are present in both the strings. But as luck would have it, Arya has gone blind just before completing this task. She needs your help to solve this problem. Input - The first line of the input contains an integer T d

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solution.cppC++17

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