C Program to Swap Two Numbers

It is a sample c program to swap two number.

Program Source Code

#include"stdio.h"
#include"conio.h"
void swap(int,int);
void main()
{

int a,b;
clrscr();
printf("\n Enter value of a:-");
scanf("\n%d",&a);
printf("\n Enter value of b:-");
scanf("\n%d",&b);
printf("\n\n a before swapping is:--%d",a);
printf("\n\n b before swapping is:--%d",b);
swap(a,b);
printf("\n\n a after swapping is:--%d",a);
printf("\n\n b after swapping is:--%d",b);
getch();

}
void swap(int x,int y)
{
int t;
t=x;
x=y;
y=t;
printf("\n\n a in swapping is:--%d",x);
printf("\n\n b in swapping is:--%d",y);
}

Output