how to develop a code which should delete duplicate element of an array from right to left?

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I already develop code for duplication of element from left right but I am having some confusion on memory management and array arrangement during right to left duplication.

I develop code for above problem. but I am not getting result so please do help me in getting result...thank you

C++

class PR
 {
 public static void main(String[] args) 
 {
 int[] x = {10, 11, 23, 25, 22, 30, 10, 11, 25, 22};
 int len = x.length;
 for (int i = 0;i < x.length;i++)
 {
 System.out.print(x[i] + ",");
 }
    for (int i = x.length - 1;i > 0;i--)
    {
        for (int j = i - 1;j >= 0;)
        {
            if (x[j] == x[i])
            {
                for (int k = j;k > 0;k--)
                {
                    x[k] = x[k - 1];
                }
                    len--;
            }
            else 
                {
                    j--;
                }
        } 
    }
    int[] y = new int[len];
       for (int i = 0;i < len;i++)
    {
        y[i] = x[i];
    }
    System.out.println("after deleting duplicate element:");
     for (int i = 0;i < y.length;i++)
    {
        System.out.print(y[i] + ",");
    }
}
}

Posted 17-Dec-15 7:08am

Member 12214149

Updated 17-Dec-15 8:05am

CHill60

v2

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Comments

nv3 17-Dec-15 16:00pm

Now what, C or JAVA?

Richard MacCutchan 17-Dec-15 16:06pm

Create a new array and copy the elements of the original into it one at a time. Before adding each element search the new array to see if that value already exists, and if so, do not add it.

2 solutions

Solution 3

it's working.
thanks Luis for your response. is there any other best solution??

Posted 19-Dec-15 17:35pm

Member 12214149

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Luis Carlos Gonzalez Barcenas · Accepted Answer · 2015-12-18T17:17:00

Following your code, only I made some changes to make this work.

Java

class PR{
public static void main(String[] args) {
        int[] x = {10, 11, 23, 25, 22, 30, 10, 11, 25, 22};
        int len = x.length;

        for (int i = 0; i < x.length; i++) {
            System.out.print(x[i] + ",");
        }
        for (int i = x.length - 1; i > 0; i--) {
            for (int j = i - 1; j >= 0;j--) {
                if (x[j] == x[i]) {
                    for (int k = j; k < len - 1; k++) {
                        x[k] = x[k + 1];
                    }
                    len--;
                }
            }
        }
        int[] y = new int[len];
        for (int i = 0; i < len; i++) {
            y[i] = x[i];
        }

        System.out.println("\nafter deleting duplicate element:");
        for (int i = 0; i < y.length; i++) {
            System.out.print(y[i] + ",");
        }
    }

}

Of course I don't say that this is the best solution but, with your idea this work, only take a look some details that fail in your original code. Hope this help.