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.
If the cancer is found early, before it has spread to other tissues, the cure rate is nearly 90%. More than half of oral cancers have spread when the cancer is detected. Most have spread to the throat or neck.