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tim johnson
tim johnson
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First Unique Number in Data Stream

The problem of finding the first unique number in a data stream can be solved using a data structure known as a "LinkedHashSet" in Java. Here's an example implementation: java import java.util.LinkedHashSet; class FirstUnique { private LinkedHashSet set; public FirstUnique(int[] nums) { set = new LinkedHashSet<>(); for (int num : nums) { ...