Beginning Student with List Abbreviations
I#*#/&>$7J5#0’&’9;*+
Remember to use defined constants and helper functions where appropriate.
Follow the full design recipe and the Coding Style in its entirety, with the exceptions of Sections 3.6.3, 3.6.4, and 4.3.
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define , and , or , not , cond , else , check-expect , check-within , equal?
Any type predicate such as number? , boolean?
Any functions on numbers found in Section 1.5 of the Racket documentation
The string functions string=? , string? , and string>=?
The list functions and values cons , first , second , rest , empty , empty? , length , append and list You must not use boolean=?
O’1#/$P*Q;/6&’9;*
All test data for correctness will always meet the stated assumptions for consumed values.
7′.2#)%”*08*9:$%*/;’<.
"0*7/$6$MA5,7*-5$(faro-shuffle lst0 lst1)K$2G*,G$,-5+A4/+$72-$(listof
*7/4$*5$7G/$0/+A87$*+$7G/$W0+7$*7/4$M0-4$lst0K$7G/$+/,-5H$*+$7G/$W0+7$*7/4$M0-4$lst1K$7G/$7G*0H$*+$7G/$+/,-5H$*7/4$M0-4$lst0K$7G/$M-A07G$*+$7G/$+/,-5H$*7/4$M0-4$lst1K$65H$+-$-5D
1 (check-expect (faro-shuffle (list "a" "b" "c") (list "A" "B" "C")) 2 (list "a" "A" "b" "B" "c" "C"))
3 (check-expect (faro-shuffle (list 1 3 5) (list 2 4 6 8 10))
4 (list123456810))
&AV4*7$Q-A0$+-8A7*-5$*5$7G/$W8/$a06q1.rktD
Y*5-4*68$,-/Z,*/57+$60/$H/W5/H$VQ$7G/$M-88-2*5F$MA5,7*-5#
"/$H/W5/$7G*+$-58Q$M-0$0 ≤ 𝑘 ≤ 𝑛$M-0$567A068$5A4V/0+$𝑘$65H$𝑛D [\/,688$7G67$7G/$M6,7-0*68$-M$6$567A068$5A4V/0$*+$𝑛! = 1 × 2 × 3 × 4 × ... (𝑛 − 1) × 𝑛K$65H$7G67$0! = 1D] NM$2/$8*+7$-A7$7G/$V*5-4*68$,-/Z,*/57+$*5$7G/$M-04$-M$6$76V8/$+7607*5F$M0-4$𝑛 = 𝑘 = 0K$2/$M-04$!"#$"%&#'()*"+,%-#
𝐶 (𝑛, 𝑘) = 𝑛!
𝑘! (𝑛 − 𝑘)!
𝐶(1,0) 𝐶(1,1)
𝐶(2,0) 𝐶(2,1) 𝐶(2,2)
𝐶(3,0) 𝐶(3,1) 𝐶(3,2) 𝐶(3,3)
𝐶(4,0) 𝐶(4,1) 𝐶(4,2) 𝐶(4,3) 𝐶(4,4) 1
"0*7/$6$MA5,7*-5$(pascal (listof Nat))$,-576*5*5F$7G/$W0+7$n$0-2+$-M$P6+,68+$70*65F8/D$[3G67$*+K$7G/$0-2+$M0-4$9$7-$n-1D]
1 (check-expect (pascal 5)
3 (list 1)
4 (list 1 1)
5 (list121)
6 (list1331)
7 (list14641)))
&AV4*7$Q-A0$+-8A7*-5$*5$7G/$W8/$a06q2.rktD 7'.2#)%"*A8*B.$3.*C)(#)%":$).2
;; A WordList is a (listof Str)
;; Requires: the items are in alphabetic order.
;; That is: if x comes before y, then (string<=? x y) ⇒ true
;; A Pair is a (list Str WordList)
;; A TranslationDict is a (listof Pair)
;; Requires: The items are sorted in alphabetic order.
;; There are no duplicates Str values.
"CA poma" "FR pomme" "UK яблуко")$*+$6$WordListK$VA7$(list "FR pomme" "CA poma" "UK яблуко")$*+$5-7$V/,6A+/$"CA "FR pomme"D
E8+-K$(list "apple" (list "CA poma" "FR pomme" "UK яблуко"))$*+$6$Pair$7G67$+7-0/+$6$26Q$7-$7065+867/$"apple"$*57-$%676865K$^0/5,GK$65H$!L065*65D$[_6,G$+70*5F$*5$"-0HS*+7$2*88
If the same English word appears in both dictionaries, merge the two lists of translations.
If the same English word is translated to different words in the same language, keep both options. (In the example below, notice that "ball" may be translated to either "FR balle" or "FR ballon".)
If the same English word is translated to exactly the same non-English word in both dictionaries, do not keep the duplicates. (In the example below, notice that both dictionaries translate "house" to "FR maison", but this value appears only once in the result.)
(check-expect
(merge-dicts (list
(list "ball" (list "FR balle"))
(list "house" (list "FR maison" "UK будинок"))
(list "resist" (list "CA resistir" "UK оборонятися")))
(list "apple" (list "CA poma" "FR pomme" "UK яблуко"))
(list "ball" (list "FR ballon" "UK клубок"))
(list "house" (list "DE Haus" "FR maison"))))
(list "apple" (list "CA poma" "FR pomme" "UK яблуко"))
(list "ball" (list "FR balle" "FR ballon" "UK клубок"))
(list "house" (list "DE Haus" "FR maison" "UK будинок"))
(list "resist" (list "CA resistir" "UK оборонятися"))))
3/$4'()*.+(50(61/#'++."7()*'()8/(#/"+%9'&($.+)+(,)(&.:'1'")(1,)'+2(;/("/)(9,<'(9%$).6$'(6,++'+(/4'1('.)*'1($.+)2(=(9/&'$(>/1()*.+(,661/,#*(.+()*'(&.+#%++./”(,5/%)(9’17.”7()8/($.+)+
&AV4*7$Q-A0$+-8A7*-5$*5$7G/$W8/$a06q3.rktD
1 2 3 4 5 6 7 8 9
1 2 3 4 5 6 7 8 9
10 11 12 13 14
)*+,A++*-5
Topic: Assignments / Assignment 6
Show all posts
? Helper functions necessary for question 1?
If my code for question 1 is concise enough without the use of any helper functions, will I still lose marks for not having any?
? Are there in person office hours?
If I wanna discuss this assignment in person are there currently in-person office hours on Tuesday?
Hi, I wonder if I need to write the names of the parameters as TranslationDict or I can name them myself
? question 3
Is the result of merging two empty lists “empty” or (list (list))?
2*0.’3*+45++*”6 /00’%’1″+(
by recent activity
? question 3
For the requirement of the main function, do we need to “sub in” the definition of TranslationDict, Pair, etc.? eg: Can we say: TranslationDict TranslationDict -> TranslationDict?
? string-ci<=? in question 3
I'm having trouble merging the word lists without the use of that built-in function, are we allowed to use string-ci<=?.
? Question 2
Are we allowed to use the function 'reverse' for this assignment?
? For Q2 parameter range
The requirement of question 2 said the rows are from 0 to n-1, so does it mean the parameter can be 0, and if the parameter is 4, then we should output the fifth line of the pascal tr...
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