Method main

Java/Leetcode/Leetcode136.java:6–10

(String[] args)

public class Leetcode136 {
    public static void main(String[] args) {
        int[] arr={4,1,2,1,2};
        int ans=uniqueNumber(arr);
        System.out.println(ans);
    }

    static int uniqueNumber(int[] arr){
        int answer=0;