46 lines
1.6 KiB
Plaintext
46 lines
1.6 KiB
Plaintext
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%% -*- prolog -*-
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%%=============================================================================
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%% Copyright (C) 2011 by Denys Duchier
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%%
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%% This program is free software: you can redistribute it and/or modify it
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%% under the terms of the GNU Lesser General Public License as published by the
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%% Free Software Foundation, either version 3 of the License, or (at your
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%% option) any later version.
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%%
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%% This program is distributed in the hope that it will be useful, but WITHOUT
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%% ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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%% FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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%% more details.
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%%
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%% You should have received a copy of the GNU Lesser General Public License
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%% along with this program. If not, see <http://www.gnu.org/licenses/>.
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%%=============================================================================
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:- use_module(library(gecode)).
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% S E N D
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% + M O S T
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% ---------
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% M O N E Y
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send_most_money(Solution,Amount) :-
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Space := space,
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Letters := intvars(Space,8,0,9),
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[S,E,N,D,M,O,T,Y] = Letters,
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Space += rel(M,'IRT_NQ',0),
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Space += rel(S,'IRT_NQ',0),
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Space += distinct(Letters),
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C = [1000, 100, 10, 1,
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1000, 100, 10, 1,
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-10000, -1000, -100, -10, -1],
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X = [S,E,N,D,
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M,O,S,T,
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M,O,N,E,Y],
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Space += linear(C, X, 'IRT_EQ', 0),
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Money := intvar(Space,0,99999),
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Space += linear([10000,1000,100,10,1],[M,O,N,E,Y],'IRT_EQ',Money),
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Space += maximize(Money),
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Space += branch(Letters,'INT_VAR_SIZE_MIN','INT_VAL_MIN'),
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SolSpace := search(Space),
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Solution := val(SolSpace,Letters),
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Amount := val(SolSpace,Money).
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