Question

How to find non-repeated characters in a string with C#

Answer 1

using System;

class Program
{
   static string getNonRepeatedCharacters(string s) { 
        int[] count = new int[256]; 
  
        int i; 
        for (i = 0; i < s.Length; i++) 
            if (s[i] != ' ') 
                count[(int)s[i]]++; 
          
        int len = i; 
  
        string nrc = "";
        for (i = 0; i < len; i++) 
            if (count[(int)s[i]] == 1) 
               nrc += s[i];
                 
        return nrc;
    } 
    static void Main()
    {
        string s = "c sharp php c++"; 
          
        string nrc = getNonRepeatedCharacters(s); 
        Console.WriteLine(nrc);
    }
}


/*
run:
  
sar
  
*/

 

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