swapping of two numbers in c without temporary variable

 

Swapping of two numbers in c without temporary variable 

C Program:

#include<stdio.h> #include<conio.h> int main() { int a,b; printf("enter the numbers a and b:"); scanf("%d %d",&a,&b); a=a+b; b=a-b; a=a-b; printf("Numbers after swapping \na:%d\nb:%d",a,b); return 0; }

Output 1:

From the above program,

ü Let a=5 and b=6.

ü Here add and sub operations used to swap the variables.

ü a=a+b;(a=5+6=11)(a=11)

b=a-b;(b=11-6=5)(b=5)

a=a-b;(a=11-5=6)(a=6).

ü Finally, a=6 and b=5.