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examples
money.cpp
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/* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
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/*
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* Main authors:
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* Christian Schulte <schulte@gecode.org>
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*
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* Copyright:
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* Christian Schulte, 2001
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*
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* This file is part of Gecode, the generic constraint
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* development environment:
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* http://www.gecode.org
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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*/
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#include <
gecode/driver.hh
>
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#include <
gecode/int.hh
>
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#include <
gecode/minimodel.hh
>
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using namespace
Gecode
;
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class
Money
:
public
Script
{
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protected
:
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static
const
int
nl = 8;
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IntVarArray
le
;
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public
:
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enum
{
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MODEL_SINGLE
,
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MODEL_CARRY
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};
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Money
(
const
Options
&
opt
) :
Script
(
opt
), le(*this,nl,0,9) {
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IntVar
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s(le[0]), e(le[1]),
n
(le[2]),
d
(le[3]),
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m(le[4]), o(le[5]),
r
(le[6]),
y
(le[7]);
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if
(
opt
.trace()) {
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trace
(*
this
, le,
opt
.trace());
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trace
(*
this
,
opt
.trace());
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}
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rel
(*
this
, s,
IRT_NQ
, 0);
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rel
(*
this
, m,
IRT_NQ
, 0);
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distinct
(*
this
, le,
opt
.ipl());
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switch
(
opt
.model()) {
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case
MODEL_SINGLE:
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rel
(*
this
, 1000*s+100*e+10*
n
+
d
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+ 1000*m+100*o+10*
r
+e
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== 10000*m+1000*o+100*
n
+10*e+
y
,
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opt
.ipl());
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break
;
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case
MODEL_CARRY:
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{
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IntVar
c0(*
this
,0,1), c1(*
this
,0,1), c2(*
this
,0,1), c3(*
this
,0,1);
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rel
(*
this
,
d
+e ==
y
+10*c0,
opt
.ipl());
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rel
(*
this
, c0+
n
+
r
== e+10*c1,
opt
.ipl());
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rel
(*
this
, c1+e+o ==
n
+10*c2,
opt
.ipl());
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rel
(*
this
, c2+s+m == o+10*c3,
opt
.ipl());
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rel
(*
this
, c3 == m,
opt
.ipl());
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}
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break
;
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default
:
GECODE_NEVER
;
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}
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branch
(*
this
, le,
INT_VAR_SIZE_MIN
(),
INT_VAL_MIN
(),
nullptr
,
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[](
const
Space
&,
const
Brancher
&,
unsigned
int
a
,
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IntVar
,
int
i
,
const
int
&
n
,
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std::ostream& o) {
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static
char
name[8] = {
's'
,
'e'
,
'n'
,
'd'
,
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'm'
,
'o'
,
'r'
,
'y'
};
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o << name[
i
]
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<< ((
a
== 0) ?
" = "
:
" != "
)
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<<
n
;
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});
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}
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virtual
void
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print
(std::ostream& os)
const
{
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os <<
"\t"
<< le << std::endl;
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}
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Money
(
Money
& s) :
Script
(s) {
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le.
update
(*
this
, s.
le
);
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}
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virtual
Space
*
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copy
(
void
) {
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return
new
Money
(*
this
);
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}
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};
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int
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main
(
int
argc,
char
* argv[]) {
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Options
opt
(
"SEND+MORE=MONEY"
);
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opt
.
model
(
Money::MODEL_SINGLE
);
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opt
.
model
(
Money::MODEL_SINGLE
,
"single"
,
"use single linear equation"
);
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opt
.
model
(
Money::MODEL_CARRY
,
"carry"
,
"use carry"
);
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opt
.
solutions
(0);
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opt
.
iterations
(20000);
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opt
.
parse
(argc,argv);
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Script::run<Money,DFS,Options>(
opt
);
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return
0;
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}
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// STATISTICS: example-any
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Gecode::y
Post propagator for SetVar SetOpType SetVar y
Definition:
set.hh:767
Money::MODEL_CARRY
@ MODEL_CARRY
Use carries.
Definition:
money.cpp:59
minimodel.hh
int.hh
Money::le
IntVarArray le
Array of letters.
Definition:
money.cpp:54
Gecode::Space
Computation spaces.
Definition:
core.hpp:1742
Gecode::branch
void branch(Home home, const FloatVarArgs &x, FloatVarBranch vars, FloatValBranch vals, FloatBranchFilter bf, FloatVarValPrint vvp)
Branch over x with variable selection vars and value selection vals.
Definition:
branch.cpp:39
Gecode::Options::iterations
void iterations(unsigned int i)
Set default number of iterations.
Definition:
options.hpp:461
Gecode::INT_VAL_MIN
IntValBranch INT_VAL_MIN(void)
Select smallest value.
Definition:
val.hpp:55
Gecode::IntVarArray
Integer variable array.
Definition:
int.hh:763
driver.hh
Gecode
Gecode toplevel namespace
Money::Money
Money(Money &s)
Constructor for cloning s.
Definition:
money.cpp:115
Test::opt
Options opt
The options.
Definition:
test.cpp:97
Gecode::Brancher
Base-class for branchers.
Definition:
core.hpp:1442
Gecode::Options
Options for scripts
Definition:
driver.hh:366
Money::Money
Money(const Options &opt)
Actual model.
Definition:
money.cpp:62
Gecode::Driver::ScriptBase
Parametric base-class for scripts.
Definition:
driver.hh:729
Gecode::r
Post propagator for SetVar SetOpType SetVar SetRelType r
Definition:
set.hh:767
Gecode::BaseOptions::parse
void parse(int &argc, char *argv[])
Parse options from arguments argv (number is argc)
Definition:
options.cpp:548
Gecode::IntVar
Integer variables.
Definition:
int.hh:371
GECODE_NEVER
#define GECODE_NEVER
Assert that this command is never executed.
Definition:
macros.hpp:56
a
struct Gecode::@602::NNF::@65::@67 a
For atomic nodes.
Gecode::INT_VAR_SIZE_MIN
IntVarBranch INT_VAR_SIZE_MIN(BranchTbl tbl)
Select variable with smallest domain size.
Definition:
var.hpp:206
Gecode::rel
void rel(Home home, FloatVar x0, FloatRelType frt, FloatVal n)
Propagates .
Definition:
rel.cpp:43
Money::print
virtual void print(std::ostream &os) const
Print solution.
Definition:
money.cpp:110
Test::Int::Distinct::d
Gecode::IntSet d(v, 7)
Money::main
int main(int argc, char *argv[])
Main-function.
Definition:
money.cpp:129
Gecode::trace
void trace(Home home, const FloatVarArgs &x, TraceFilter tf, int te, FloatTracer &t)
Create a tracer for float variables.
Definition:
trace.cpp:39
Gecode::distinct
void distinct(Home home, const IntVarArgs &x, IntPropLevel ipl)
Post propagator for for all .
Definition:
distinct.cpp:46
Gecode::Options::solutions
void solutions(unsigned int n)
Set default number of solutions to search for.
Definition:
options.hpp:283
Gecode::IRT_NQ
@ IRT_NQ
Disequality ( )
Definition:
int.hh:927
Money::MODEL_SINGLE
@ MODEL_SINGLE
Use single linear equation.
Definition:
money.cpp:58
Gecode::Options::model
void model(int v)
Set default model value.
Definition:
options.hpp:177
n
int n
Number of negative literals for node type.
Definition:
bool-expr.cpp:234
Test::Int::Basic::i
Gecode::IntArgs i({1, 2, 3, 4})
Money
Example: SEND+MORE=MONEY puzzle
Definition:
money.cpp:49
Money::copy
virtual Space * copy(void)
Copy during cloning.
Definition:
money.cpp:120
Gecode::VarArray::update
void update(Space &home, VarArray< Var > &a)
Update array to be a clone of array a.
Definition:
array.hpp:1013