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Alex Rivera
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Actually my previous question got me thinking and I realized that reversing a Dictionary is not trivial. What is the most elegant and readable way to do it? Same scenario student Many to Many with Classes original Dicitonary<int, List<int>> where the key is studentId and the Value is a List<int> that contains classId and want to revert to Dictionary<classId, List<studentId>> Thanks Update: Actually I just tested Luke and Bruno's solutions and they return the right amount of classed whoever they all have the same student, will update as i go along.
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