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#42 First Non-Repeating Element in an Array

Companies:
Innotech Itone Digitalleague
Themes:
AlgorithmsArraysPractice

Find the first non-repeating element in an integer array:

public class ExerciseElement {
    public static void main(String[] args) {
        int[] arr = {9, 4, 9, 6, 7, 4, 5, 1, 0, 9, -1};
        int n = getFirstUnique(arr);
        System.out.println(n);
    }

    static int getFirstUnique(int[] arr) {
        ...
    }
}

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