what in the flying fffff was evolution option CDR CONS question (2 Viewers)

[Terra_Niux]

I think CDR 2 means extract the 2nd atom

CDR (2, [a,b,c,d] = b

Extracts the second atom which is b

Meh I dunno

 

[Archman]

CONS is adding the element in front the list
CDR is extracting the specified element form the list.

 

[Wild Dan Hibiki]

how about the inputting n = 3 q, wtf were we sposed to talk about?

 

[hfis]

how about the inputting n = 3 q, wtf were we sposed to talk about?

C) was fairly easy (the n=3 one). In both cases, the 'answer' was 6.

With function a, recursion is used as a mthod of repetition, and a(1) is used as the base case - therefore, it is a member of the functional paradigm. Working is similar to
a(3)
-> 3 * a(2)
2 * a(1)
1

So, result = 2*3 = 6.

With the second one, control structures (a while loop) are used, so it belongs to the imperitive paradigm. Once again, the result is 6;

b(3)
Pass ---- Result ---- K
0 ---- 1 ---- 1
1 ---- 1 ---- 2
2 ---- 2 ---- 3
3 ---- 6 ---- 4 (k > n, break loop. Result is 6.)

 

[Archman]

well for one of them u get a(3) = 3*a(2) = 3*2*a(1) = 3*2*1 = 6
the other one: b(3) = 1 * 1 * 2 * 3 = 6
so basically both of them calculates n!
then u hafta analyse what paradigm they are from, which i didnt like very much

 

[scorpi0n]

C) was fairly easy (the n=3 one). In both cases, the 'answer' was 6.

With function a, recursion is used as a mthod of repetition, and a(1) is used as the base case - therefore, it is a member of the functional paradigm. Working is similar to
a(3)
-> 3 * a(2)
2 * a(1)
1

So, result = 2*3 = 6.

With the second one, control structures (a while loop) are used, so it belongs to the imperitive paradigm. Once again, the result is 6;

b(3)
Pass ---- Result ---- K
0 ---- 1 ---- 1
1 ---- 1 ---- 2
2 ---- 2 ---- 3
3 ---- 6 ---- 4 (k > n, break loop. Result is 6.)

spot on at least i hope so, thats exactly what i said

 

[Wild Dan Hibiki]

oh dear.... i wrote it as 6a cause i had no idea wat was going on
and for the second one.... wait i got 6 for that as well
LOL hopefully i wond lost that many marks

 

[MedNez]

Ah.. I saw functional and panicked, but they were really easy.

The first 2 evaluations with CON and CDR were given away by the rules.

The second two, I got 6a for one ( had no idea why the a would dissapear ), and 6 for the second one.

 

[Archman]

the a is not a pronumeral, a(n-1) is a fuction.

 

[MedNez]

Ah crap. Maybe they'll be generous because I had a 6 in the answer?? Worth praying for

 

[Ditfos]

ah, bugger, for b(n) I misread the 5th line as {result = result * n
which means I end up finding n^n, in this case 27. Got the a(n) though.

 

[rozzo]

that question was one big wtf to me