swap two numbers

Swap two numbers without third variable

Author: Viplav-Jha

swap two numbers without third variable

@@ -0,0 +1,11 @@
+#include<stdio.h>  
+ int main()    
+{    
+int a=10, b=20;      
+printf("Before swap a=%d b=%d",a,b);      
+a=a+b;//a=30 (10+20)    
+b=a-b;//b=10 (30-20)    
+a=a-b;//a=20 (30-10)    
+printf("\nAfter swap a=%d b=%d",a,b);    
+return 0;  
+}