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AQA A-level Computer Science Paper 1 - 11th June 2025 [Exam Chat]

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Reply 80

I also got 48

Reply 81

Original post
by probably_sane
AQA A-Level Computer Science Paper 1 (2051600) - Wednesday 11th June 2025 [exam chat]
Welcome to the exam discussion thread for this exam.
Introduce yourself! Let others know what you're aiming for in your exams, what you are struggling with in your revision or anything else.
Wishing you all the best of luck.

General Information
Date/Time: Wednesday 11th June 2025 AM
Length: 2h 30m
Good luck!
Click here to find exam discussions for other A-level subjects

What was the way of making it left associative for the exponential question?

Reply 82

Original post
by Theo mayhew
Did anyone else see a contradiction on question nine with the scoring in the example and how it said it should work


Yes from my understanding it was asking to subtract whatever the first target is times by 10 from the score and then when I looked at the example it said -22 which made no sense

Reply 83

Original post
by graphic-beer
What was the way of making it left associative for the exponential question?

Do u mean right or left left is the easier one

Reply 84

Original post
by acting-earthquak
yeah as long as it was bigger than all the others you’re good, i put 6 just cause the others went up in 2s


Tbh I did all the right code but it still gave me -1 for the scores… tbh idk my computer was freaking out so I’m not too sure but I did amend all functions

Reply 85

Anyone remember what they did for the trace tables?

Reply 86

Original post
by omarmammadli2
Section D was great but there were some weird questions in Section A

like what

Reply 87

i will do anything for lower grade boundaries this year i bombed the HELL out of that last question hust brute forcing division and taking away and probably that trace table bc why did it all default to false 💔💔 and i misread the bubble sort question as time complexity ☹️ please i beed an a*
(edited 9 months ago)

Reply 88

Absolutely messed it, and I've always been told I'm good at programming. Some questions I juat couldnt do, rest I did. Doesn't help I didn't have a teacher for months so we covered entire A-level spec in 4 months

Reply 89

did allright tbh couldve done better, i spent too long prepping for adding brackets last night but felt fairly prepared, brushed up on theory stuff before bed and lucked out on it tbh. section b coulve gone better spent too long on it and somehow kept crashing it but got a valid output in the end. section c had some wierd questions imo not too bad and flashed first 3 of section d leaving indecies left starting coz i didnt read the question properly (due to lack of time left lol) and got just over half of the last of section d done, i think its enough to get 7-9 out of 14 on it, i think ive got between 70 and 80 on it in the end

Reply 90

Original post
by Joshua Hardy
did allright tbh couldve done better, i spent too long prepping for adding brackets last night but felt fairly prepared, brushed up on theory stuff before bed and lucked out on it tbh. section b coulve gone better spent too long on it and somehow kept crashing it but got a valid output in the end. section c had some wierd questions imo not too bad and flashed first 3 of section d leaving indecies left starting coz i didnt read the question properly (due to lack of time left lol) and got just over half of the last of section d done, i think its enough to get 7-9 out of 14 on it, i think ive got between 70 and 80 on it in the end

don't complain mate. lets just say some of us had a worser experience

Reply 91

Original post
by thevingetsthewin
I did something like
for i in range(5):
for j in range(5):
for k in range(5):
for O1 in "+-*/":
for O2 in "+-*/":
result = EvaluateRPN(ConvertToRPN(#Concatenating the numbers together. too lazy to type it out #))
if i != j and i != k and j != k and result != -1 and result in Targets:
return True
return False
Yeah i did similar but i just made a temp list, looped i to 5, j to 4, k to 3 and removed the item from the temp list each time it came up

Reply 92

the one thing i havent dont since gcse was 2d arrays in vb... the regret i feel after that q2. i made a list of string arrays instead and converted it to an array and it seemed to somewhat work out ...

Reply 93

do we think the mark scheme for the last question will mean you would have had to wrote every combination of each 3 number and both operators. i did 7 combinations and went i doubt they want me to write out like all 20 and when i ran the test, the first came up for solvable using exactly 3 and then the next showed it didnt. is this what other ppl got for their output?

Reply 94

also, was the section B basically remove any non letters. fill a 2d array with amount of columns supplied. then output it by doing an i j loop from end to start. bc my solution errored at the end but i had all those parts in it so im hoping to pick up majority of marks

Reply 95

Original post
by cdinsley7
I got -49


I got -48 I think cuz you had to deduct 4 points instead of 5 i think and the other one you deduct 1 less than they required

Reply 96

i just skiped section b and section d last question. also the trace table. am i cooked??

Reply 97

What did you guys put for <expression>

Reply 98

What was the dollar symbol in the regex? Might have gotten it wrong. Also what did people get for the question on the number of combinations (the last one?)

Reply 99

Original post
by Rucha_A
What was the dollar symbol in the regex? Might have gotten it wrong. Also what did people get for the question on the number of combinations (the last one?)

Dollar sign means end of line and i said it signified the string its matching against must end after that set of digits so I'm hoping. I also skipped that question because I was not interested ! but i think it was basically just saying how many ways can you rearrange 5 but the 2 operators have to be between the numbers so i found it quite complicated

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