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at develop
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132/* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- *//* * Main authors: * Christian Schulte <schulte@gecode.org> * * Copyright: * Christian Schulte, 2001 * * This file is part of Gecode, the generic constraint * development environment: * http://www.gecode.org * * Permission is hereby granted, free of charge, to any person obtaining * a copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sublicense, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * The above copyright notice and this permission notice shall be * included in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. * */
#include <gecode/driver.hh>#include <gecode/int.hh>#include <gecode/minimodel.hh>
using namespace Gecode;
/** * \brief %Example: DONALD+GERALD=ROBERT puzzle * * Well-known cryptoarithmetic puzzle of unknown origin. * * \ingroup Example * */class Donald : public Script {private: /// Number of letters static const int nl = 10; /// Array of letters IntVarArray le;public: /// Model variants enum { MODEL_SINGLE, ///< Use single linear equation MODEL_CARRY ///< Use carries }; /// Actual model Donald(const Options& opt) : Script(opt), le(*this,nl,0,9) { IntVar d(le[0]), o(le[1]), n(le[2]), a(le[3]), l(le[4]), g(le[5]), e(le[6]), r(le[7]), b(le[8]), t(le[9]); rel(*this, d, IRT_NQ, 0); rel(*this, g, IRT_NQ, 0); rel(*this, r, IRT_NQ, 0);
distinct(*this, le, opt.ipl());
switch (opt.model()) { case MODEL_SINGLE: rel(*this, 100000*d+10000*o+1000*n+100*a+10*l+d + 100000*g+10000*e+1000*r+100*a+10*l+d == 100000*r+10000*o+1000*b+100*e+10*r+t, opt.ipl()); break; case MODEL_CARRY: { IntVar c0(*this,0,1), c1(*this,0,1), c2(*this,0,1), c3(*this,0,1), c4(*this,0,1); rel(*this, d+d == t+10*c0, opt.ipl()); rel(*this, c0+l+l == r+10*c1, opt.ipl()); rel(*this, c1+a+a == e+10*c2, opt.ipl()); rel(*this, c2+n+r == b+10*c3, opt.ipl()); rel(*this, c3+o+e == o+10*c4, opt.ipl()); rel(*this, c4+d+g == r, opt.ipl()); } break; default: GECODE_NEVER; }
branch(*this, le, INT_VAR_SIZE_MIN(), INT_VAL_MAX()); } /// Constructor for cloning \a s Donald(Donald& s) : Script(s) { le.update(*this, s.le); } /// Copy during cloning virtual Space* copy(void) { return new Donald(*this); } /// Print solution virtual void print(std::ostream& os) const { os << "\t" << le << std::endl;; }
};
/** \brief Main-function * \relates Donald */intmain(int argc, char* argv[]) { Options opt("Donald+Gerald=Robert"); opt.model(Donald::MODEL_SINGLE); opt.model(Donald::MODEL_SINGLE, "single", "use single linear equation"); opt.model(Donald::MODEL_CARRY, "carry", "use carry"); opt.solutions(0); opt.iterations(1500); opt.parse(argc,argv); Script::run<Donald,DFS,Options>(opt); return 0;}
// STATISTICS: example-any