#include <stdio.h>
#include <stdlib.h>

// This code uses pointers and works OK

void swap(int* a, int* b)
{
	printf("\t[swap] Before a=%d, b=%d \n", *a, *b);
	int temp;
	
	temp = *b;
	*b = *a;
	*a =temp;
	
    printf("\t[swap] After  a=%d, b=%d \n", *a, *b);
}

int main()
{
	int a=5;
	int b=8;
	
    printf("[main] Before a=%d, b=%d \n", a, b);	
    
	swap(&a, &b);
    
	printf("[main] After  a=%d, b=%d \n", a, b);
	
	system("pause");
}