Leetcode -- Integer to Roman

Solution 03/30/2014:

 
class Solution {  
 public:  
   string intToRoman(int num) {  
     string result;  
     int count = num / 1000;  
     for(int i = 0 ; i < count; i++) {  
       result += "M";  
     }  
     num = num % 1000;  
     count = num / 100;  
     appendTo(count, "C","D", "M", result);  
     num = num % 100;  
     count = num / 10;  
     appendTo(count, "X","L","C", result);  
     num = num % 10;  
     count = num;  
     appendTo(count, "I","V","X", result);  
     return result;  
   }  
   void appendTo(int count, const std::string& smaller, const std::string& larger, const std::strin& evenLarger, std::string& result) {  
     if(count <; 4) {  
       for(int i = 0; i < count; i++) {  
         result+= smaller;  
       }  
     } else if (count == 4) {  
       result += smaller + larger;  
     } else if(count <; 9) {  
       result += larger;  
       for(int i = 5; i < count; i++) {  
         result += smaller;  
       }  
     } else if(count == 9) {  
       result += smaller + evenLarger;  
     }  
   }  
 };