hacker rank java 34th problem solution(Hash set)

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34. HASH SET


//Write your code here
HashSet<String> pairs = new HashSet<String>(t);

    for(int i = 0; i < t; i++)
    {
        pairs.add("(" + pair_left[i] + ", " + pair_right[i] + ")" );
        System.out.println(pairs.size());        
    }


--Sundaram Dubey

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