how can i return string by vilating duplicates(inpyt like asdfsda but out

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Question

how can i return string by vilating duplicates(inpyt like 
asdfsda but output should be 2a2d2sf and 2a,2d,2s,f)

Question Submitted By :: Chandra

I also faced this Question!!

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Answer Posted By

Re: how can i return string by vilating duplicates(inpyt like asdfsda but output should be 2a2d2sf and 2a,2d,2s,f)

Answer
# 1

I suppose this question is intended to test the knowledge on
IEnumerator. The following piece of code may give the
required first part of the output...

string x = "asdfsdaaasasa";
            string output = "";
            int count = 0;
            IEnumerator ie = x.GetEnumerator();
            IEnumerator iee = x.GetEnumerator();
            while(ie.MoveNext())
            {
                while(iee.MoveNext())
                {
                    if ((char)ie.Current == (char)iee.Current)
                    {
                        count++;
                    }
                }
                iee.Reset();
                if (!output.Contains(ie.Current.ToString()))
                    output = output + count + ie.Current;
                count = 0;
            }
            Console.WriteLine(output);

Is This Answer Correct ?

1 Yes

0 No

Adityakiran

Re: how can i return string by vilating duplicates(inpyt like asdfsda but output should be 2a2d2sf and 2a,2d,2s,f)

Answer
# 2

we can modify the previous answer to make it efficient...
check it..

string x = "asdfsdaaasasa";
            string output = "";
            int count = 0;
            IEnumerator ie = x.GetEnumerator();
            IEnumerator iee = x.GetEnumerator();
            while(ie.MoveNext())
            {
             if (!output.Contains(ie.Current.ToString()))
               {
                while(iee.MoveNext())
                {
                    if ((char)ie.Current == (char)iee.Current)
                    {
                        count++;
                    }
                }
                iee.Reset();                
                output = output + count + ie.Current;
                count = 0;
               }
            }
            Console.WriteLine(output);

Is This Answer Correct ?

0 Yes

0 No

Hari

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