Adding solution for Pretty Json

Problem link : https://www.interviewbit.com/problems/pretty-json/

Author: khannagautam

Strings/Pretty Json

@@ -0,0 +1,60 @@
+vector<string> Solution::prettyJSON(string A) 
+{
+    int n = A.size(),i,j;
+    vector< string >ans;
+    int tbctr = 0;
+    i = 0;
+    bool flag = false;
+    while(i<n)
+    {
+        string row = "";
+        for(j=0;j<tbctr;j++)
+            row += '\t';
+            flag = false;
+        for(j=i;j<n;j++)
+        {
+            if(A[j] == '[' || A[j] == '{')
+            {
+                if(flag)
+                    ans.push_back(row);
+                row = "";
+                for(int k=0;k<tbctr;k++)
+                    row += '\t';
+                row += A[j];
+                ans.push_back(row);
+                i = j+1;
+                tbctr++;
+                
+                break;
+            }
+            if(A[j] == ']' || A[j] == '}')
+            {
+                tbctr--;
+                if(flag)
+                    ans.push_back(row);
+                row = "";
+                for(int k=0;k<tbctr;k++)
+                    row += '\t';
+                row += A[j];
+                if(j + 1 < n && A[j+1] == ',')
+                    row += A[j++];
+                ans.push_back(row);
+                i = j+1;
+                break;
+            }
+            row += A[j];
+            flag = true;
+            i = j+1;
+            if(A[j] == ',')
+            {
+                if(flag)
+                    ans.push_back(row);
+                i = j+1;
+                break;
+            }
+        }
+      //  i = j+1;
+    //    i++;
+    }
+    return ans;
+}