I had a phone screen with Walmart recently, but I couldn't finish the first round and had to redo it. Here’s a summary of the questions I faced, and I'm also looking for some credits. :)
Course Overlap
Input:
String[][] course = {{"17", "Math"}, {"17", "English"}, {"58", "Math"}, {"61", "Physics"}}
Output: {"17,58", ["Math"], "17,61", [], "58,61", []}
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