Chairs Requirement

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Chef's coding class is very famous in Chefland. This year $X$ students joined his class and each student will require one chair to sit on. Chef already has $Y$ chairs in his class. Determine the minimum number of new chairs Chef must buy so that every student is able to get one chair to sit on. ### Input - The first line contains a single integer $T$ — the number of test cases. Then the test ca

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solution.cppC++17

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