C Program to interchange the values of two different strings variable

C Program to interchange the values of two different strings variable

main ( )
{
 char * s1 = “abcd”;
 char  s2[] = “efgh”;
printf( “%s %16lu \n, s1, s1);
printf( “%s %16lu \n, s2, s2);

 s1 = s2;
printf( “%s %16lu \n, s1, s1); 
printf( “%s %16lu \n, s2, s2);  
}