Use the profiler option on your compiler to examine the code fragment at the end of Section 5.1. (As stated in Section 5.2, the purpose of a profiler is to create executable code that includes timing information on the functions and operating system-level operations that the program spends most of its running time executing.) The profiler output should include sufficient information to determine the parts of the program that take the longest. Rewrite these parts and run the new program through the profiler again. Compare the two outputs.