% SEND + MORE = MONEY
% Adapted from: http://en.wikipedia.org/wiki/Constraint_programming
:- use_module(library('bounds')).
sendmore(Digits) :-
Digits = [S,E,N,D,M,O,R,Y], % Create variables
Digits in 0..9, % Associate domains to variables
S #\= 0, % Constraint: S must be different from 0
M #\= 0,
all_different(Digits), % all the elements must take different values
1000*S + 100*E + 10*N + D % Other constraints
+ 1000*M + 100*O + 10*R + E
#= 10000*M + 1000*O + 100*N + 10*E + Y,
label(Digits). % Start the search
