1. char first[10]="monkey";
char second[10]="fish";
char* keep;
char* sell;
/* keep the monkey sell the fish */
keep = first; /* or &first[0] */
sell = second;
printf("Keep the %s\n", keep);
printf("Sell the %s\n", sell);

2. /* Change mind. Keep the fish,
sell the monkey. */
/* Swap keep and sell */
char* temp; /* should be up top */
temp = keep;
keep = sell;
sell = temp;
/* No strings have been copied! */
printf("Keep the %s\n", keep);
printf("Sell the %s\n", sell);

3. Sorting some books
char books[5][40] =
{"Problem Solving in C",
"Algorithm Development",
"Web Design",
"Database Managment",
"The C Programming Language"};

4. /*An array of pointers:*/
char* bookP[5];
/* Have the pointer point to the books */
int i;
for (i = 0; i<5; i++)
bookP[i]=books[i];
/*The address of the book*/

5. /*Bubble sort the array, without moving any books! */
/* some variables we will need */
int last; /* subscript of last
element of unsorted array*/
int i; /* index of first number in
pair being compared */
char* temp;

6. int n=5; /*number of books */
for (last = n-1; last>=1; last--)
for (i=0; i<= last-1; i++)
if (strcmp(bookP[i],bookP[i+1])>0)
/*swap the pointers*/
{ temp=bookP[i];
bookP[i]=bookP[i+1];
bookP[i+1]=temp; }

7. /* Print out the books in alphabetical order */
for (i=0; i<n; i++)
printf("%s \n", bookP[i]);
/* Print out the books in stored order */
for (i=0; i<n; i++)
printf("%s \n", books[i]);