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Rewrite appropriate programs from earlier chapters and exercises with pointers instead of array indexing. Good possibilities include getline (Chapters 1 and 4), atoi, itoa, and their variants (Chapters 2, 3, and 4), reverse (Chapter 3), and strindex and getop (Chapter 4).

/* Rewrite appropriate programs from earlier chapters an exercises with pointers instead
 * of array indexing. Good possibilities include [...]. */

/* This problem does not have a well-defined goal so I don't feel especially motivated
 * to do it. I feel I have a good grasp of pointers and so these exercises seem like
 * rather menial translation of previously solved problems. I have a good grasp of
 * pointers so I will skip this and carry on with subsequent exercises. */