C Program to swap two numbers

In the previous post we learnt about Program for addition of two numbers.In this post we learnt about  How to get two numbers and swap it

#include<stdio.h>
#include<conio.h>
void main()
{
int a,b,c;
clrscr();
printf("Enter value of a and b");
scanf("%d%d",&a,&b);
c=a;
a=b;
b=c;
printf("after swapping a=%d\tb=%d",a,b);
getch();
}

Output:
Enter value of a and b : 5 7

after swapping:
a=7
b=5