c program to swap two numbers using call by reference
#include <stdio.h>
void swap(int*, int*);
int main()
{
int x, y;
printf("Enter the value of x and yn");
scanf("%d%d",&x,&y);
printf("Before Swappingnx = %dny = %dn", x, y);
swap(&x, &y);
printf("After Swappingnx = %dny = %dn", x, y);
return 0;
}
void swap(int *a, int *b)
{
int temp;
temp = *b;
*b = *a;
*a = temp;
}c program for swapping of two numbers using temporary variable
#include <stdio.h>
int main()
{
int a, b, temp;
printf("enter the values of a and b: n");
scanf("%d%d", &a, &b );
printf("current values are:n a=%dn b=%dn", a, b);
temp=a;
a=b;
b=temp;
printf("After swapping:n a=%dn b=%dn", a, b);
}Copyright © 2021 Codeinu
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