Grading for exam2 for 11:00 section

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Paper part

Note: I gave credit for showing work if I could find it somewhere
      on your paper, even if it wasn't circled, etc.

1a) 2.5 points total.
    -.5 if a single minor error (e.g., thinking -1 < -2)
    -.5 if did bubble sort instead of selection sort and did it correct.
    -1 if did some combination of bubble sort and selection sort, or 
       did bubble sort but did it wrong.
     0 if you didn't show any work.
     Note: -2 is < -1.

1b) 2.5 points total.
    If you made a mistake on just one letter I didn't take off.
    -.5 you shifted left by the wrong amount, but did it correctly.  
        If you were shifting left, it should have been by 6.
    -.5 if you shifted left by 20, or right by 6.
    -1 if correct but no work shown.
    -2 if there was some work shown, but not doing the correct 
       algorithm, or completely not clear what was going on.

1c) 2.5 points total.
    -.5 if you didn't have the 1's bit (which should have been 0).
    -.5 if you had one of the powers of 2 wrong but did everything
        right based on that wrong value (e.g., used 124 instead of 128).
    -.5 for each careless arithmetic mistake (e.g., 144-128 = 14).
    -1 if correct but no work shown.
    -1 if some part of your thinking was correct, but messed up part of it.
    Note: you've got to be able to do basic arithmetic without making
          lots of mistakes.

1d) 2.5 points total.
    -.5 if did everything correct but didn't actually say if it is prime or not.
    -1 if you claimed it was prime because you only tested up to 6.
    -1 you correctly said 91 = 7 * 21, but incorrectly said that meant it is prime.
    -2 if you only tried dividing by 2, or didn't do any divisions and did
       something strange.
    -2 if correcty answer (prime) but didn't have any work.

2a) 4 points total.
    -.5 if you just missed that i ends up being 4.
    -1 if i is correct and either total or x is correct, but the 
       other is not.
    -1 if went once too far on the loop (ran it for i=4).
    -2.5 if i is correct but nothing else is.
    -3 last value of i was right, none of the other was right, 
       and no work shown.
    -4 no work shown, no final values are correct, and not sure
       what you were doing.

2b) 3 points total.
    1 point for getting the initial values in the f2 function 
      correct (z=1, w=2)
    1 point for getting the initial values in the f1 function
      correct (x=3, y=2)
    1 point for everything else, and ending up with the correct
      values for things in main (everything is 0).
    -3 no actual values on the paper.

2c) 3 points total.
    -0 error on just one of the nums values.
    -.5 have nums getting 6 numbers instead of 5.
    -.5 have nums[0] being 1 initially rather than 0.
    -.5 nums correct all the way through, only had first loop values for i.
    -1 had everything correct after first for loop but messed up 
       the second one.
    -1.5 completely correct sequence of values for i, but mistakes
       on nums.
    -2 correct values for i on the first loop, but not for anything else.
    -2.5 final value of i correct, nothing else is.



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Computer Part

Note: there should be a file grade.txt in your exam2 directory with what you got 
for each part.  If you did not take the computer test, there is no grade.txt file, and 
you just got a 0 for it.

20 points total.

1) 10 points total.
   -1 one or more uninitialized variables.
   -1 sums are all off by 1.
   -2.5 Was correct, as evidence by correct compiled program, but there's an 
      error in it now that you didn't fix.
   -2.5 Only final sum is computed/printed correctly.
   -2 Sums computed correctly, but only up to a fixed value, not up to what the user typed.
   -4 Loop goes through all the numbers from 1 up to what the user typed, but 
      no sums are computed, or not at all correct.
   -7 Code compiles, but doesn't even have a loop.
   -7 Code does not compile, but it was a start (e.g., with a loop that 
      showed the right idea).
   -9 Code does not compile, and is barely even a start (no loop, etc.).

2) 5 points total.
   Note: there was only 1 error in the file after all.  Oops.
   -2.5 Fixed error so it compiles correctly, but doesn't run correctly.

3) 5 points total.
   -3 No error fixed, but did compile program so it is called small.
   -1.5 Fixed the error that was there, and it compiles.  But you made some other error.