How to resolve the algorithm Combinations step by step in the Prolog programming language

Published on 12 May 2024 09:40 PM
#Prolog

How to resolve the algorithm Combinations step by step in the Prolog programming language

Table of Contents

Problem Statement

Given non-negative integers   m   and   n,   generate all size   m   combinations   of the integers from   0   (zero)   to   n-1   in sorted order   (each combination is sorted and the entire table is sorted).

3   comb   5     is: If it is more "natural" in your language to start counting from   1   (unity) instead of   0   (zero), the combinations can be of the integers from   1   to   n.

Let's start with the solution:

Step by Step solution about How to resolve the algorithm Combinations step by step in the Prolog programming language

Source code in the prolog programming language

:- use_module(library(clpfd)).

comb_clpfd(L, M, N) :-
    length(L, M),
    L ins 1..N,
    chain(L, #<),
    label(L).

comb_Prolog(L, M, N) :-
    length(L, M),
    fill(L, 1, N).

fill([], _, _).

fill([H | T], Min, Max) :-
    between(Min, Max, H),
    H1 is H + 1,
    fill(T, H1, Max).

:- use_module(library(clpfd)).
comb_lstcomp(N, M, V) :-
	V <- {L	& length(L, N), L ins 1..M & all_distinct(L), chain(L, #<), label(L)}.

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