diff --git a/src/nlsr_rtc.hpp b/src/nlsr_rtc.hpp
index 0e391e6..987686e 100644
--- a/src/nlsr_rtc.hpp
+++ b/src/nlsr_rtc.hpp
@@ -4,140 +4,141 @@
 #include <list>
 #include <iostream>
 
-namespace nlsr {
-
-class Map;
-class RoutingTable;
-class Nlsr;
-
-
-using namespace std;
-
-class RoutingTableCalculator
+namespace nlsr
 {
-public:
-	RoutingTableCalculator()
-	{
-	}
-	RoutingTableCalculator(int rn)
-	{
-		numOfRouter=rn;
-	}
-protected:
-	void allocateAdjMatrix();
-	void initMatrix();
-	void makeAdjMatrix(Nlsr& pnlsr,Map pMap);
-	void printAdjMatrix();
-	int getNumOfLinkfromAdjMatrix(int sRouter);
-	void freeAdjMatrix();
-	void adjustAdMatrix(int source, int link, double linkCost);
-	void getLinksFromAdjMatrix(int *links, double *linkCosts, int source);
 
-	void allocateLinks();
-	void allocateLinkCosts();
-	void freeLinks();
-	void freeLinksCosts();
-
-	void setNoLink(int nl)
-	{
-		vNoLink=nl;
-	}
-
-protected:
-	double ** adjMatrix;
-	int numOfRouter;
-
-	int vNoLink;
-	int *links;
-	double *linkCosts;
-};
-
-class LinkStateRoutingTableCalculator: public RoutingTableCalculator
-{
-public:
-	LinkStateRoutingTableCalculator(int rn)
-		: EMPTY_PARENT(-12345)
-		, INF_DISTANCE(2147483647)
-		, NO_MAPPING_NUM(-1)
-		, NO_NEXT_HOP(-12345)
-	{
-		numOfRouter=rn;
-	}
-	
-
-	void calculatePath(Map& pMap, RoutingTable& rt, Nlsr& pnlsr);
-	
-
-private:
-	void doDijkstraPathCalculation(int sourceRouter);
-	void sortQueueByDistance(int *Q, double *dist,int start,int element);
-	int isNotExplored(int *Q, int u,int start, int element);
-	void printAllLsPath(int sourceRouter);
-	void printLsPath(int destRouter);
-	void addAllLsNextHopsToRoutingTable(Nlsr& pnlsr, RoutingTable& rt,
-	                                                  Map& pMap,int sourceRouter);
-	int getLsNextHop(int dest, int source);
-
-	void allocateParent();
-	void allocateDistance();
-	void freeParent();
-	void freeDistance();
+    class Map;
+    class RoutingTable;
+    class Nlsr;
 
 
-	
+    using namespace std;
 
-private:	
-	int *parent;
-	double *distance;
+    class RoutingTableCalculator
+    {
+    public:
+        RoutingTableCalculator()
+        {
+        }
+        RoutingTableCalculator(int rn)
+        {
+            numOfRouter=rn;
+        }
+    protected:
+        void allocateAdjMatrix();
+        void initMatrix();
+        void makeAdjMatrix(Nlsr& pnlsr,Map pMap);
+        void printAdjMatrix();
+        int getNumOfLinkfromAdjMatrix(int sRouter);
+        void freeAdjMatrix();
+        void adjustAdMatrix(int source, int link, double linkCost);
+        void getLinksFromAdjMatrix(int *links, double *linkCosts, int source);
 
-	
-	const int EMPTY_PARENT;
-	const double INF_DISTANCE;
-	const int NO_MAPPING_NUM;
-	const int NO_NEXT_HOP;
+        void allocateLinks();
+        void allocateLinkCosts();
+        void freeLinks();
+        void freeLinksCosts();
 
-};
+        void setNoLink(int nl)
+        {
+            vNoLink=nl;
+        }
 
-class HypRoutingTableCalculator: public RoutingTableCalculator
-{
-public:
-	HypRoutingTableCalculator(int rn)
-		:  MATH_PI(3.141592654)
-	{
-		numOfRouter=rn;
-		isDryRun=0;		
-	}
-	HypRoutingTableCalculator(int rn, int idr)
-		:  MATH_PI(3.141592654)
-	{
-		numOfRouter=rn;
-		isDryRun=idr;
-	}
+    protected:
+        double ** adjMatrix;
+        int numOfRouter;
 
-	void calculatePath(Map& pMap, RoutingTable& rt, Nlsr& pnlsr);
+        int vNoLink;
+        int *links;
+        double *linkCosts;
+    };
 
-private:
-	void allocateLinkFaces();
-	void allocateDistanceToNeighbor();
-	void allocateDistFromNbrToDest();
-	void freeLinkFaces();
-	void freeDistanceToNeighbor();
-	void freeDistFromNbrToDest();	
+    class LinkStateRoutingTableCalculator: public RoutingTableCalculator
+    {
+    public:
+        LinkStateRoutingTableCalculator(int rn)
+            : EMPTY_PARENT(-12345)
+            , INF_DISTANCE(2147483647)
+            , NO_MAPPING_NUM(-1)
+            , NO_NEXT_HOP(-12345)
+        {
+            numOfRouter=rn;
+        }
 
-	double getHyperbolicDistance(Nlsr& pnlsr,Map& pMap, int src, int dest);
-	void addHypNextHopsToRoutingTable(Nlsr& pnlsr,Map& pMap,
-	                                      RoutingTable& rt, int noFaces,int dest);
 
-private:
-	int isDryRun;
+        void calculatePath(Map& pMap, RoutingTable& rt, Nlsr& pnlsr);
 
-	int *linkFaces;
-	double *distanceToNeighbor;
-	double *distFromNbrToDest;
 
-	const double MATH_PI;
+    private:
+        void doDijkstraPathCalculation(int sourceRouter);
+        void sortQueueByDistance(int *Q, double *dist,int start,int element);
+        int isNotExplored(int *Q, int u,int start, int element);
+        void printAllLsPath(int sourceRouter);
+        void printLsPath(int destRouter);
+        void addAllLsNextHopsToRoutingTable(Nlsr& pnlsr, RoutingTable& rt,
+                                            Map& pMap,int sourceRouter);
+        int getLsNextHop(int dest, int source);
 
-};
+        void allocateParent();
+        void allocateDistance();
+        void freeParent();
+        void freeDistance();
+
+
+
+
+    private:
+        int *parent;
+        double *distance;
+
+
+        const int EMPTY_PARENT;
+        const double INF_DISTANCE;
+        const int NO_MAPPING_NUM;
+        const int NO_NEXT_HOP;
+
+    };
+
+    class HypRoutingTableCalculator: public RoutingTableCalculator
+    {
+    public:
+        HypRoutingTableCalculator(int rn)
+            :  MATH_PI(3.141592654)
+        {
+            numOfRouter=rn;
+            isDryRun=0;
+        }
+        HypRoutingTableCalculator(int rn, int idr)
+            :  MATH_PI(3.141592654)
+        {
+            numOfRouter=rn;
+            isDryRun=idr;
+        }
+
+        void calculatePath(Map& pMap, RoutingTable& rt, Nlsr& pnlsr);
+
+    private:
+        void allocateLinkFaces();
+        void allocateDistanceToNeighbor();
+        void allocateDistFromNbrToDest();
+        void freeLinkFaces();
+        void freeDistanceToNeighbor();
+        void freeDistFromNbrToDest();
+
+        double getHyperbolicDistance(Nlsr& pnlsr,Map& pMap, int src, int dest);
+        void addHypNextHopsToRoutingTable(Nlsr& pnlsr,Map& pMap,
+                                          RoutingTable& rt, int noFaces,int dest);
+
+    private:
+        int isDryRun;
+
+        int *linkFaces;
+        double *distanceToNeighbor;
+        double *distFromNbrToDest;
+
+        const double MATH_PI;
+
+    };
 
 }//namespace nlsr