Lecture Quiz 7                          

The following program defines the integers i and j and then calls function exch to exchange
their values. (The first printf() prints 10 and 20 while the second prints 20 followed by 10).
Fill in the lines to complete the program.

#include <stdio.h>

void exch(____________________, ___________________);    
main() {
   int   i,   j;
   i = 10, j=20;
   printf("   i = %d,  j = %d\n", i, j);
   
   exch(_____________________, ____________________);
   printf("   i = %d,  j = %d\n", i, j);
}
void exch(____________________________________________) {

__________________________________________

__________________________________________

__________________________________________

__________________________________________

__________________________________________
}
CIS-Linux2:~/2012/c/ptrs>gcc exchange.c
CIS-Linux2:~/2012/c/ptrs>./a.out
   i = 10,  j=20
   i = 20,  j=10
CIS-Linux2:~/2012/c/ptrs>