ECE 144 Homework 6 Due Early Week 7, On-Time Week 8 Last modified: 9/25/02

• Always write the time-complexity (in Big Oh notation) in a comment next to every method or function you write in this class.
• Use the test input and timers from homework 1.
• Note submitting any program that you did not write yourself is plagiarism - a very serious form of cheating. Anyone caught submitting a homework solution they did not author themselves will be prosecuted to the fullest extend of UCI law. Just as a reminder, please re-read my cheating policy. Cheating policy.
• (25 points) Implement InsertionSort.
• (25 points) Implement MergeSort.
• (25 points) Implement QuickSort.
• (25 points) Write a driver program that allows the user to test your class implementation. Again use the PCTimer class to measure the sorting time for each of these sorting algorithms:
  • fill an array with the words from a specified file (e.g., random.txt)
  • t1.start(), sort the words, t1.stop()
  • t2.start(), re-sort the sorted words, t2.stop()
  • print out (to a user specified file) the times required to sort 1) a random list of words, and 2) a sorted list of words
  • Again, be sure your main program takes arguments from the command line for input file name and output file name.
• What to submit:
  • Show your TA that your program works as described above.
  • Submit (and save) your program for future comparison with the others.