Chef and Problem Setting

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Chef wants to set problems for a Lunchtime contest. He already has all the problem ideas and tests for them. Now, he only needs someone to test them, so he asked Hasan to do it. Hasan is now testing the problems, the problem that hasan is currently testing has $M$ tests (numbered $1$ through $M$). He wrote $N$ solutions (numbered $1$ through $N$) for this problem; some of the solutions are inten

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solution.cppC++17

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