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  1. using System;
  2. using System.Collections.Generic;
  3.  
  4. public class Test
  5. {
  6.     private static Dictionary<string, int> RomanNumbers = new Dictionary<string,int>
  7.     {
  8.         {"M", 1000},
  9.         {"CM", 900},
  10.         {"D", 500},
  11.         {"CD", 400},
  12.         {"C", 100},
  13.         {"XC", 90},
  14.         {"L", 50},
  15.         {"XL", 40},
  16.         {"X", 10},
  17.         {"IX", 9},
  18.         {"V", 5},
  19.         {"IV", 4},
  20.         {"I", 1}
  21.     };
  22.  
  23.     public static int ConvertRomanNumtoInt(string strRomanValue)
  24.     {        
  25.         int retVal = 0;
  26.         foreach (KeyValuePair<string, int> pair in RomanNumbers)
  27.         {
  28.             while (strRomanValue.IndexOf(pair.Key) == 0)
  29.             {
  30.                 retVal += pair.Value;
  31.                 strRomanValue = strRomanValue.Substring(pair.Key.Length);
  32.             }
  33.         }
  34.         return retVal;
  35.     }
  36.  
  37.     public static void Main()
  38.     {
  39.         Console.WriteLine(ConvertRomanNumtoInt("I"));
  40.         Console.WriteLine(ConvertRomanNumtoInt("II"));
  41.         Console.WriteLine(ConvertRomanNumtoInt("III"));
  42.         Console.WriteLine(ConvertRomanNumtoInt("IV"));
  43.         Console.WriteLine(ConvertRomanNumtoInt("V"));
  44.         Console.WriteLine(ConvertRomanNumtoInt("VI"));
  45.         Console.WriteLine(ConvertRomanNumtoInt("VII"));
  46.         Console.WriteLine(ConvertRomanNumtoInt("VIII"));
  47.         Console.WriteLine(ConvertRomanNumtoInt("IX"));
  48.         Console.WriteLine(ConvertRomanNumtoInt("X"));
  49.         Console.WriteLine(ConvertRomanNumtoInt("XI"));
  50.         Console.WriteLine(ConvertRomanNumtoInt("XII"));
  51.         Console.WriteLine(ConvertRomanNumtoInt("XIII"));
  52.         Console.WriteLine(ConvertRomanNumtoInt("XIV"));
  53.         Console.WriteLine(ConvertRomanNumtoInt("XV"));
  54.         Console.WriteLine(ConvertRomanNumtoInt("XVI"));
  55.         Console.WriteLine(ConvertRomanNumtoInt("XVII"));
  56.         Console.WriteLine(ConvertRomanNumtoInt("XVIII"));
  57.         Console.WriteLine(ConvertRomanNumtoInt("XIX"));
  58.         Console.WriteLine(ConvertRomanNumtoInt("XX"));
  59.     }
  60. }
  61.  
  62.  
Success #stdin #stdout 0.05s 33880KB
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https://ideone.com/kCEjsE
language:
C# (gmcs 5.20.1)
created:
11 years ago
visibility:
public

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