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  1. using System;
  2. using System.Collections.Generic;
  3. using System.Linq;
  4. using System.Text;
  5.  
  6. namespace _02_ExtractOddOccurrence
  7. {
  8.     class oddOccurrence
  9.     {
  10.         static void Main(string[] args)
  11.         {
  12.             string inputStr = "C#, SQL, PHP, PHP, SQL, SQL";
  13.             char[] separators = new char[] { ',', ' ', '.', '-', '_' };
  14.             string[] words = inputStr.Split(separators, StringSplitOptions.RemoveEmptyEntries);
  15.             Dictionary<string, int> wordCount = new Dictionary<string, int>();
  16.             foreach (string word in words)
  17.             {
  18.                 if (wordCount.ContainsKey(word))
  19.                 {
  20.                     wordCount[word]++;
  21.                 }
  22.                 else
  23.                 {
  24.                     wordCount.Add(word, 1);
  25.                 }
  26.             }
  27.             Console.Write("{");
  28.             foreach (KeyValuePair<string,int> pair in wordCount)
  29.             {
  30.                 if (pair.Value % 2 != 0)
  31.                 {
  32.                     Console.Write("{0},", pair.Key);
  33.                 }
  34.             }
  35.             Console.WriteLine("}.");
  36.         }
  37.     }
  38. }
  39.  
Success #stdin #stdout 0.04s 37056KB
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Standard input is empty
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{C#,SQL,}.
https://ideone.com/q4FPP
language:
C# (gmcs 5.20.1)
created:
12 years ago
visibility:
public

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