diff --git a/src/engine/local_engine/arraydata.cpp b/src/engine/local_engine/arraydata.cpp
index 32501652..e1fcf24f 100644
--- a/src/engine/local_engine/arraydata.cpp
+++ b/src/engine/local_engine/arraydata.cpp
@@ -20,6 +20,7 @@
 
 #include "arraydata.h"
 
+using namespace std;
 
 struct RoundData
 {
@@ -1055,11 +1056,9 @@ vector< vector<int> > ArrayData::getHandChancePreflop(int handCode) {
 	int i;
 
 	vector< vector<int> > chance(2);
-	vector<int> chance_0(10);
-	vector<int> chance_1(10);
 
-	chance[0] = chance_0;
-	chance[1] = chance_1;
+	chance[0].resize(10);
+	chance[1].resize(10);
 
 	for(i=0;i<10;i++) {
 		chance[0][i] = 0;
diff --git a/src/engine/local_engine/arraydata.h b/src/engine/local_engine/arraydata.h
index 843d5623..51af34f2 100644
--- a/src/engine/local_engine/arraydata.h
+++ b/src/engine/local_engine/arraydata.h
@@ -22,11 +22,8 @@
 
 #include <core/loghelper.h>
 
-#include<iostream>
 #include<vector>
 
-using namespace std;
-
 class ArrayData{
 public:
     ArrayData();
@@ -34,7 +31,7 @@ public:
     ~ArrayData();
 
 	void getHandChancePreflop(int, int**);
-	vector< vector<int> > getHandChancePreflop(int);
+	std::vector< std::vector<int> > getHandChancePreflop(int);
 };
 
 #endif
diff --git a/src/engine/local_engine/cardsvalue.cpp b/src/engine/local_engine/cardsvalue.cpp
index b77b74d6..afeea5fc 100755
--- a/src/engine/local_engine/cardsvalue.cpp
+++ b/src/engine/local_engine/cardsvalue.cpp
@@ -19,6 +19,8 @@
  ***************************************************************************/
 #include "cardsvalue.h"
 
+using namespace std;
+
 CardsValue::CardsValue()
 {
 }
@@ -568,11 +570,9 @@ vector< vector<int> > CardsValue::calcCardsChance(GameState beRoID, int* playerC
 	int i,j;
 
 	vector< vector<int> > chance(2);
-	vector<int> chance_0(10);
-	vector<int> chance_1(10);
 
-	chance[0] = chance_0;
-	chance[1] = chance_1;
+	chance[0].resize(10);
+	chance[1].resize(10);
 
 	for(i=0;i<10;i++) {
 		chance[0][i] = 0;
diff --git a/src/engine/local_engine/cardsvalue.h b/src/engine/local_engine/cardsvalue.h
index be9b559d..fa2abb53 100755
--- a/src/engine/local_engine/cardsvalue.h
+++ b/src/engine/local_engine/cardsvalue.h
@@ -24,10 +24,9 @@
 #include "arraydata.h"
 #include "tools.h"
 
-#include<iostream>
 #include<vector>
 
-using namespace std;
+
 
 class CardsValue{
 public:
@@ -41,7 +40,7 @@ public:
    int holeCardsToIntCode(int*);
    int* intCodeToHoleCards(int);
 
-   vector< vector<int> > calcCardsChance(GameState, int*, int*);
+   std::vector< std::vector<int> > calcCardsChance(GameState, int*, int*);
    int** showdown(GameState, int**, int);
 
 };