C Program of Swapping of two numbers:
#include <stdio.h>
main()
{
int x, y, temp;
printf("Enter two values: ");
scanf("%d%d", &x, &y);
printf("Before Swapping\nx = %d\ny = %d\n",x,y);
temp = x;
x = y;
y = temp;
printf("After Swapping\nx = %d\ny = %d\n",x,y);
}
Also by without using third varibale:
#include <stdio.h>
main()
{
int a, b;
printf("Enter two values: ");
scanf("%d%d", &a, &b);
printf("Before Swapping\nx = %d\ny = %d\n",a,b);
a = a + b;
b = a - b;
a = a - b;
printf("After Swapping\nx = %d\ny = %d\n",a,b);
}
Also by Making Function but Calling by Values of it:
#include <stdio.h>
void swap(int,int);
main()
{
int x, y;
printf("Enter two values: ");
scanf("%d%d", &x, &y);
swap(x,y);
}
void swap(int x,int y)
{
int temp;
printf("Before Swapping\nx = %d\ny = %d\n",x,y);
temp = x;
x = y;
y = temp;
printf("After Swapping\nx = %d\ny = %d\n",x,y);
}
Also by using Function but Calling by Reference:
#include <stdio.h>
void swap(int*, int*);
main()
{
int x, y;
printf("Enter two values: ");
scanf("%d%d",&x,&y);
printf("Before Swapping\nx = %d\ny = %d\n", x, y);
swap(&x, &y);
printf("After Swapping\nx = %d\ny = %d\n", x, y);
}
void swap(int *a, int *b)
{
int temp;
temp = *b;
*b = *a;
*a = temp;
}
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