Convert Decimal To Roman using Dictionary

1. namespace CSharpPractice  
2. {  
3.     class Class1  
4.     {  
5.         public static void RomanDecimalConvertor(int num)  
6.         {  
7.             Dictionary<int, string> roman = new Dictionary<int, string>  
8.                                                             {  
9.                                                              {1,"I"}, {4,"IV"},  
10.                                                              {5,"V"}, {9,"IX"},  
11.                                                              {10,"X"}, {40,"XL"},  
12.                                                              {50,"L"}, {90,"XC"},  
13.                                                              {100,"C"}, {400,"CD"},  
14.                                                              {500,"D"}, {900,"CM"},  
15.                                                              {1000,"M"}  
16.                                                             };  
17.             int divisor = 0, times = 0;  
18.             while(num!=0)  
19.             {  
20.                   
21.                 foreach (int key in roman.Keys)  
22.                 {  
23.                     if (key > num)  
24.                         break;  
25.                     divisor = key;  
26.                 }  
27.                 times = num / divisor;  
28.                 for (int i = 1; i <= times; i++)  
29.                 {  
30.                     Console.Write(roman[divisor]);  
31.                 }  
32.                 num = num % divisor;  
33.                  
34.             }  
35.         }  
36.     }  
37. }  
38.   
39.   
40.   
41. namespace CSharpPractice  
42. {  
43.     class Program  
44.     {  
45.         static void Main(string[] args)  
46.         {  
47.             Class1.RomanDecimalConvertor(1500);  
48.             Console.Read();  
49.         }  
50.     }  
51. }