Contact US

Log In

Come Join Us!

Are you a
Computer / IT professional?
Join Tek-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

*Tek-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

HInts for Prolog Dice sum

HInts for Prolog Dice sum

HInts for Prolog Dice sum

I was wondering if anybody can help me with this problem that I would like to solve. I just need some advices on how to start.
Given N dice (thus N lists of [1,2,3,4,5])  I need to find the possible combinations that give as result another number.
dice(P, N, L) where P is the number we want, N the number of dice and L the list
dice (5, 2, L)
L = [1, 4]
L = [2, 3]
L = [3, 2]
L = [4, 1]

I don't know if recursion is what I need here or not. I just need a clue, I really want to try and solve this problem by myself.

Greetings from Vaduz, Lichtenstein :)

RE: HInts for Prolog Dice sum

It can be done with recursion : dice(5, 2, L) = dice(4, 1, [1|L1]).
You can use a helper predicate


dice(P, N, L) :-
  dice_h(P, N, [], L).
the search succeeds when you reach
dice(0, 0, L, L).

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Tek-Tips Forums free from inappropriate posts.
The Tek-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Tek-Tips forums is a member-only feature.

Click Here to join Tek-Tips and talk with other members! Already a Member? Login

Close Box

Join Tek-Tips® Today!

Join your peers on the Internet's largest technical computer professional community.
It's easy to join and it's free.

Here's Why Members Love Tek-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close