racket

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random function in scheme

I am trying to get a random string from a list of strings in scheme. Example List 开发者_运维技巧( \"this\" \"that\" \"today\" \"yesterday\")[详细]

2023-01-25 13:11 分类：问答
Removing/comparing string value with a list - scheme

I am trying to remove members which exists in a string from a list consisting of those members. Example:[详细]

2023-01-24 20:25 分类：问答
Adding arguments to list causes error

I tried an example where we need to pass a list as arguments and if condition succeeds I want to add result to a new list.[详细]

2023-01-24 16:21 分类：问答
Computing the longest common subsequence of two lists in Scheme in polynomial time

So I need to calculate the longest common subsequence of two lists, but it needs to be in polynomial time. The only problem i\'m having is that I\'m n开发者_如何学JAVAot allowed to use \"!\" at all. T[详细]

2023-01-24 16:05 分类：问答
Longest common sublist

While 开发者_JAVA技巧trying to write a solution to the longest common sublist problem in Scheme, I\'m having trouble figuring out what is wrong with what I have so far.I think it\'s the right idea and[详细]

2023-01-24 02:33 分类：问答
How can I create an association list from 2 lists?

In DrScheme, how can I create an association list from 2 lists? For example, I have, y = ( 1 2 3 ) x = 开发者_JS百科( a b c )[详细]

2023-01-22 22:01 分类：问答
Problems with sorting

I\'m learning Scheme in a class and my professor doesn\'t answer questions after 8:00, so I\'m hoping you all can help me out.Basically I have a family tree type thing and I\'m trying to get all the a[详细]

2023-01-22 17:14 分类：问答
Identifiers and Binding in Scheme - how to interpret the function?

I am reading DrRacket document http://docs.racket-lang.org/guide/binding.html There is a function (define f[详细]

2023-01-22 00:20 分类：问答
Searching through lists with Scheme (DrRacket)

So here\'s my code: (define *graph* (read(open-input-file \"开发者_开发技巧starbucks4.sxml\")))[详细]

2023-01-21 21:27 分类：问答
Using the member function in Scheme

This is my code: (define p (read(open-input-file \"starbucks4.sxml\"))) (define get-artifacts (lambda (l)[详细]

2023-01-21 07:04 分类：问答