diff --git a/Swap-without-third-variable/swap_2_numbers_using_pointers.cpp b/Swap-without-third-variable/swap_2_numbers_using_pointers.cpp
new file mode 100644
index 0000000..6882bba
--- /dev/null
+++ b/Swap-without-third-variable/swap_2_numbers_using_pointers.cpp
@@ -0,0 +1,18 @@
+#include<bits/stdc++.h>
+using namespace std ; 
+
+void swap_numbers(int* a,int* b)
+{
+	*a = *a + *b ;
+	*b = *a - *b ;
+	*a = *a - *b ;
+	
+}
+
+int main()
+{
+	int *x = 10, *y = 20 ;
+	swap_numbers(x , y ) ;
+	cout<<*x<<endl ;
+	cout<<*y<<endl ;
+}