## CMSC412 exam 2: solution and results

### 2. My scoring and my cutoffs

As usual, my scoring is harsh but my cutoffs are lenient.

Problem 2 (GeekOS) didn't work out. I wanted two things: (1) metrics for identifying candidates to freeze/unfreeze; and (2) a decision procedure that used these metrics to decide which process (if any) to freeze/unfreeze. I should have asked for part 1 only, and I should have stated it in these words. So I ended up treating this problem as extra credit.

Here are cutoffs and how I chose them:

```P1   P2  P3  P4  Total
19   0   20   6   45    A ≥ 45
19   0   15   5   39    B ≥ 39
15   0   12   3   30    C ≥ 30
10   0   10   0   20    D ≥ 20
```

### 3. Total scores and individual problem scores

The columns below are independent. Column 1 has the sorted scores for problem 1, column 2 has the sorted scores for problem 2, etc. The last column has the sorted total scores and cutoffs.

```P1(20)	P2(20)	P3(20)	P4(10)	Total(70)
19	15	20	10	63
19	14	20	10	59
18	12	20	10	58
18	12	20	10	58
18	12	20	10	54
18	11	20	10	53
18	10	20	9	52
18	10	19	9	49
18	10	19	5	47
18	8	19	5	46
18	8	15	5	46
18	8	15	5	45
18	8	15	5	45  A ≥ 45
17	7	15	5	44
17	6	15	5	43
17	6	15	5	43
17	6	15	4	42
17	6	13	4	41
17	6	12	4	41
17	6	12	3	40
17	6	10	3	39  B ≥ 39
16	6	10	3	38
16	6	10	3	37
16	6	8	3	37
16	6	7	3	36
16	6	7	3	34
16	6	6	3	33
16	6	5	2	31
15	6	4	2	30  C ≥ 30
15	5	4	1	28
14	5	4	1	26
12	4	4	0	20
7	2	2	0	20  D ≥ 20
```