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style: enable HideUtilityClassConstructor
in checkstyle (#5147)
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@ -7,7 +7,9 @@ import java.util.Scanner;
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* Reason to use bitwise operator: It makes our program faster as we are operating on bits and not
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* on actual numbers.
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*/
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public class NonRepeatingElement {
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public final class NonRepeatingElement {
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private NonRepeatingElement() {
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}
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public static void main(String[] args) {
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try (Scanner sc = new Scanner(System.in)) {
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