Capitals Of the Past

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This is the last question. Read the description carefully. Input - First line contains number of test cases T. The description of T test cases follows. - Each test case has two lines, - First line contains a number n. - Next line contains n space separated integer each number ai. Output For each test case, output a single line containing the integer. Constraints - 1 ≤ T ≤ 100

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solution.cppC++17

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