Implement integer to Roman numeral conversion

leetcode/lc12/IntToRom.cpp

@@ -0,0 +1,20 @@
+class Solution {
+public:
+    string intToRoman(int num) {
+        const vector<pair<int,string>> valueSymbols = {
+            {1000,"M"}, {900,"CM"}, {500, "D"}, {400,"CD"},{100,"C"},{90,"XC"},{50,"L"}, {40,"XL"},{10,"X"},{9,"IX"},{5,"V"},{4,"IV"},{1,"I"}
+            
+        };
+        string res;
+        for(auto const &[value,symbol]: valueSymbols){
+            if(num == 0)
+                break;
+            while(num>=value){
+                res+=symbol;
+                num-=value;
+
+            }    
+        }
+        return res;
+    }
+};