Juniors and Blackboard(EASY)

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Students are given a task of painting a blackboard with black paint. Before hand they want to know the area of black board they want to paint. Your task is to calculate the area of the rectangular black board. Input - The first line will contain T the number of testcases. - Each of the next T test cases will contain two space seprated integers l b, the length and bredth of the blackboard they

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solution.cppC++17

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