Added interger to roman leetcode problem

Author: sunilkumarmaurya786693

leetcode/array/976_Largest_Perimeter_Triangle.cpp renamed to leetcode/array/Largest_Perimeter_Triangle.cpp

@@ -0,0 +1,18 @@
+class Solution {
+public:
+ string intToRoman(int num) {
+ int value[]={1,4,5,9,10,40,50,90,100,400,500,900,1000};
+ string symbol []={"I","IV","V","IX","X","XL","L","XC","C","CD","D","CM","M"};
+ string ans="";
+ for(int i=12;i>=0;i--){
+ int x=value[i];
+ int mul=num/x;
+ while(mul){
+ ans.append(symbol[i]);
+ mul--;
+ }
+ num=num%x;
+ }
+ return ans;
+ }
+};