Grading sheet for p6

Makefile (10 points):
        2 points for something that works
        2 points for including -Wall
        2 points for using a source file p6.c 
        2 points for using a binary file name of p6
        2 points if make clean does something close to right

Compiles (10 points):
        5 for sucessful compilation
        5 for no warnings when compiled with -Wall

Correct Functionality (60 points)
   recognizes errors in input file of automated opponent:
   2 non-contiguous and overlapping ships
   2 repeated ships
   2 invalid coordinates

   10 allows user to set position of each ship
   10 prompts user for coordinates of each attack
   4 recognizes errors in user input
   7 correctly shows success and failure of bombing attempts
   7 correctly reports when your ships have been sunk
   7 correctly reports when your opponents ships have been sunk
   9 correctly updates your status screen after each round
         (showing the results of all your prior attacks)

Documentation (20 points)
        5 for a header containing name, date, description
       15 for additional comments within source code