Programming for Problem Solving
GTU Practical 55
55. Write a C program to swap the two values using pointers.
#include<stdio.h> ( this applies in the given code )
#include
void swap(int *,int *);
int main(void)
{
int i=15,j=20;
printf(“\n Before Swapping i = %d j = %d”,i,j);
swap(&i,&j);
printf(“\n After Swapping i = %d j = %d”,i,j);
return 0;
}
void swap(int *a,int *b)
{
*a=*a + *b;
*b=*a – *b;
*a=*a – *b;
}
OUTPUT
Before Swapping i = 15 j = 20
After Swapping i = 20 j = 15
