Questions tagged [prolog]
Prolog is the most commonly used logic programming language. It supports non-deterministic programming through backtracking and pattern matching through unification.
40 questions
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Topological sort in Prolog
I wanted to calculate topological sort given a few predicates asserting that one element should be before another in a sequence. order(a, b) means that ...
- 131
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maxlist(L, M) that succeeds if M is the max number in the list L
I'm working my way through "Prolog For Artificial Intelligence" by Ivan Bratko, and exercise 3.17 is to write a maxlist(L, M) that succeeds when ...
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Temperature Scale Converter in Prolog
Problem statement:
Write a program that converts all given temperatures from a given input temperature scale to a given output temperature scale. The temperature scales to be supported are Kelvin, ...
- 3,107
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Prolog refactor if/else
How do I refactor this mess of if/else conditions so that it's more readable?
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- 19
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Simple task with recursion on Prolog
I'm new in Prolog. So, I'm not sure if my code is ok and optimized. I'm also not sure if I use recursion correctly.
Task: find students that has at least 1 bad grade (1 or 2) and print them in table
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- 121
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Constraint solving CrossCells puzzle game solution
There's a puzzle game called
CrossCells (not
affiliated; there's also multiple other ones with the same kind of idea,
but slightly different layout and rule set) that I've been playing on
and off. ...
- 11.4k
3
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Basic logic problem in Prolog
I thought it would be a good idea to take some easy to solve (by hand) problems and model them in Prolog for practice. Here is a problem I modeled in Prolog:
A messy kid wrote a multiplication ...
- 6,220
4
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Writing a tokenizer in SWI-Prolog
To teach myself how to do meta-programming using Prolog, I've been playing around with translating ABNF syntax into DCG syntax. I'm still at the lexing and tokenising stage, but hope to advance to the ...
- 243
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Find CISC prerequisites
Below I have some code written in prolog as a brief example. The goal of the program is to take a Computer and Information Science (CISC) course number and return any CISC prerequisites (prereqs).
I ...
- 389
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1
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Echo in prolog with single print
In order to learn a bit more of Prolog, I implemented the echo command for SWI-Prolog.
I want a correct implementation, that is, it satisfies the following ...
- 3,107
5
votes
1
answer
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Counting number of seen states
I have some code which executes a simple task, counting the number of states reachable from a particular state, would just like some advice on how to improve it.
So far it stores all the states it ...
- 349
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Zebra puzzle in Prolog
I have attempted to a zebra puzzle in prolog and I was seeking some feedback as to the way I went about solving the puzzle.
Here is the puzzle:
Two weeks ago, four enthusiasts made sightings of ...
- 41
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All outcomes for subtraction on each value in list individually
As you can see from my predicate iterate, I am repeating Z is X-3 and Z is X-2, the scenarios are different if the value is 0 or ...
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Harry Potter's Family Tree Database
As an assignment for a class, I have made a small Harry Potter family tree in Prolog. It compiles into a self-contained executable that can be run straight from the command line on Linux machines. ...
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