Thread: Is this right?

Originally Posted by Beachblue

Here's the question: Two numbers are input through the keyboard into two locations C and D. Write a program to interchange the contents of C and D.

Code:

#include<stdio.h>

main()
{
   int c,d;

   printf( "\nEnter c value:" );
   scanf( "%d", &c );
   printf( "\nEnter d value:" );
   scanf( "%d", &d );

   printf("\nc=%d", d);
   printf( "\nd=%d", c);
 
   getchar();
   getchar();
}

I think my program interchanges the values of 2 variables... Is that the same as interchanging the 'contents of 2 locations'?

This is your code
[code]
#include "stdio.h"
void swap(int *, int *);
int main()
{
int c,d;

printf( "\nEnter c value:" );
scanf( "%d", &c );
printf( "\nEnter d value:" );
scanf( "%d", &d );
swap(&c, &d);
printf("\nc=%d", c);
printf( "\nd=%d", d);
return 0;
}

void swap(int *p, int *q)
{
int temp;
temp=*p;
*p=*q;
*q=temp;

}
[\code]

Actually, I think, [\code] should be [/code] here.