The books solution, is definitely cleaner, and the biggest difference I can see is the books solution is actually sorting the variables, rather than just changing the display order. In terms of efficiency, displaying stuff to the console is more efficient than popping up message boxes.
A Dr. Sharmila Anandasabapathy, MD , Gastroenterology, answered on behalf of The Mount Sinai Health System. Colon cancer is very curable and survivable provided detection is early. In this video, Sharmila Anandasabapathy, MD, a gastroenterologist, explains that later detection can result in lower survivability rates.
Colon cancer is one of the most preventable types of cancer, but it requires you to be proactive in your own health care. In fact, when caught early, more than 90 percent of patients with early stage colon cancer survive longer than five years. Colonoscopy is the gold standard for cancer screening.