Okay to all those you said it was harder than 2018 I just had a look at it.
MC:
1-15 free marks, nothing too special.
16: Did they really ask this? This exact question has been asked in a previous Hsc paper, I can't believe they just copied it.
17: Good question
18-20 felt a bit too easy for the 'final' MC questions
Overall MC was the same with 2018 in terms of difficulty. Nothing special
Section 2:
21-23(i) free marks
23(ii) I can't believe they actually asked about a System flowchart. I guess they wanted to throw people off who thought it's alright if you don't learn it.
That's the first time in over a decade..
The rest up to 27(c) is all free marks really. No algorithms so far! Which is interesting because 2018 started getting them MUCH earlier.
26(c) is really a useless question, I mean have them draw a structure chart but explain the symbols?
28) Another string algorithm like 2018 which is always fun. Pretty easy algorithm like 2018. They give you all the functions so it should literally be just a few lines.
29) Free marks. Too easy for the later part of the paper.
30) Now this is an interesting algorithm. Switching between two different types of arrays may have been a bit difficult for some. However really all your required was an O(n^2) algorithm, i.e. For/while loops nested inside one big for loop that loops through the first array. Overall probably a bit harder than the 2018 Q30 algorithm.
Section 2: Overall was an easier section than 2018. It had MUCH less algorithms and a lot of questions were giving away free marks. There weren't really questions designed to trick you as opposed to Q27 of 2018 which tricked a lot of people. Instead of drawing a Structure chart you were made to explain the symbols? Like come on.
Definitely Sec 2 felt longer but it was also easier than 2018.
Overall easier paper than 2018. On par with 2017.