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alpha.cpp
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1/* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
2/*
3 * Main authors:
4 * Christian Schulte <schulte@gecode.org>
5 *
6 * Copyright:
7 * Christian Schulte, 2001
8 *
9 * This file is part of Gecode, the generic constraint
10 * development environment:
11 * http://www.gecode.org
12 *
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33
34#include <gecode/driver.hh>
35
36#include <gecode/int.hh>
37#include <gecode/minimodel.hh>
38
39using namespace Gecode;
40
49class Alpha : public Script {
50protected:
52 static const int n = 26;
55public:
57 enum {
61 };
63 Alpha(const Options& opt)
64 : Script(opt), le(*this,n,1,n) {
65 IntVar
66 a(le[ 0]), b(le[ 1]), c(le[ 2]), e(le[ 4]), f(le[ 5]),
67 g(le[ 6]), h(le[ 7]), i(le[ 8]), j(le[ 9]), k(le[10]),
68 l(le[11]), m(le[12]), n(le[13]), o(le[14]), p(le[15]),
69 q(le[16]), r(le[17]), s(le[18]), t(le[19]), u(le[20]),
70 v(le[21]), w(le[22]), x(le[23]), y(le[24]), z(le[25]);
71
72 rel(*this, b+a+l+l+e+t == 45, opt.ipl());
73 rel(*this, c+e+l+l+o == 43, opt.ipl());
74 rel(*this, c+o+n+c+e+r+t == 74, opt.ipl());
75 rel(*this, f+l+u+t+e == 30, opt.ipl());
76 rel(*this, f+u+g+u+e == 50, opt.ipl());
77 rel(*this, g+l+e+e == 66, opt.ipl());
78 rel(*this, j+a+z+z == 58, opt.ipl());
79 rel(*this, l+y+r+e == 47, opt.ipl());
80 rel(*this, o+b+o+e == 53, opt.ipl());
81 rel(*this, o+p+e+r+a == 65, opt.ipl());
82 rel(*this, p+o+l+k+a == 59, opt.ipl());
83 rel(*this, q+u+a+r+t+e+t == 50, opt.ipl());
84 rel(*this, s+a+x+o+p+h+o+n+e == 134, opt.ipl());
85 rel(*this, s+c+a+l+e == 51, opt.ipl());
86 rel(*this, s+o+l+o == 37, opt.ipl());
87 rel(*this, s+o+n+g == 61, opt.ipl());
88 rel(*this, s+o+p+r+a+n+o == 82, opt.ipl());
89 rel(*this, t+h+e+m+e == 72, opt.ipl());
90 rel(*this, v+i+o+l+i+n == 100, opt.ipl());
91 rel(*this, w+a+l+t+z == 34, opt.ipl());
92
93 distinct(*this, le, opt.ipl());
94
95 switch (opt.branching()) {
96 case BRANCH_NONE:
97 branch(*this, le, INT_VAR_NONE(), INT_VAL_MIN());
98 break;
99 case BRANCH_INVERSE:
100 branch(*this, le.slice(le.size()-1,-1), INT_VAR_NONE(), INT_VAL_MIN());
101 break;
102 case BRANCH_SIZE:
104 break;
105 }
106 }
107
109 Alpha(Alpha& s) : Script(s) {
110 le.update(*this, s.le);
111 }
112
113 virtual Space*
114 copy(void) {
115 return new Alpha(*this);
116 }
117
118 virtual void
119 print(std::ostream& os) const {
120 os << "\t";
121 for (int i = 0; i < n; i++) {
122 os << ((char) (i+'a')) << '=' << le[i] << ((i<n-1)?", ":"\n");
123 if ((i+1) % 8 == 0)
124 os << std::endl << "\t";
125 }
126 os << std::endl;
127 }
128};
129
133int
134main(int argc, char* argv[]) {
135 Options opt("Alpha");
136 opt.solutions(0);
137 opt.iterations(10);
138 opt.branching(Alpha::BRANCH_NONE);
139 opt.branching(Alpha::BRANCH_NONE, "none");
140 opt.branching(Alpha::BRANCH_INVERSE, "inverse");
141 opt.branching(Alpha::BRANCH_SIZE, "size");
142 opt.parse(argc,argv);
144 return 0;
145}
146
147// STATISTICS: example-any
148
IntVarArray le
Array for letters.
Definition alpha.cpp:54
int main(int argc, char *argv[])
Main-function.
Definition alpha.cpp:134
Alpha(const Options &opt)
Actual model.
Definition alpha.cpp:63
virtual Space * copy(void)
Copy during cloning.
Definition alpha.cpp:114
Alpha(Alpha &s)
Constructor for cloning s.
Definition alpha.cpp:109
static const int n
Alphabet has 26 letters.
Definition alpha.cpp:52
@ BRANCH_NONE
Choose variable left to right.
Definition alpha.cpp:58
@ BRANCH_INVERSE
Choose variable right to left.
Definition alpha.cpp:59
@ BRANCH_SIZE
Choose variable with smallest size.
Definition alpha.cpp:60
virtual void print(std::ostream &os) const
Print solution.
Definition alpha.cpp:119
static void run(const Options &opt, Script *s=NULL)
Integer variable array.
Definition int.hh:772
Integer variables.
Definition int.hh:371
Options for scripts
Definition driver.hh:366
Computation spaces.
Definition core.hpp:1744
void parse(int argc, char *argv[])
Parse commandline arguments.
Definition test.cpp:120
Driver::ScriptBase< Driver::IgnoreStepOption< Space > > Script
Base-class for scripts.
Definition driver.hh:801
void branch(Home home, const FloatVarArgs &x, FloatVarBranch vars, FloatValBranch vals, FloatBranchFilter bf=nullptr, FloatVarValPrint vvp=nullptr)
Branch over x with variable selection vars and value selection vals.
Definition branch.cpp:39
void rel(Home home, FloatVar x0, FloatRelType frt, FloatVar x1)
Post propagator for .
Definition rel.cpp:68
Gecode toplevel namespace
Post propagator for SetVar SetOpType SetVar SetRelType r
Definition set.hh:773
void distinct(Home home, const IntVarArgs &x, IntPropLevel ipl=IPL_DEF)
Post propagator for for all .
Definition distinct.cpp:46
IntVarBranch INT_VAR_NONE(void)
Select first unassigned variable.
Definition var.hpp:96
Post propagator for SetVar SetOpType SetVar SetRelType SetVar z
Definition set.hh:773
Post propagator for SetVar SetOpType SetVar y
Definition set.hh:773
IntValBranch INT_VAL_MIN(void)
Select smallest value.
Definition val.hpp:55
IntVarBranch INT_VAR_SIZE_MIN(BranchTbl tbl=nullptr)
Select variable with smallest domain size.
Definition var.hpp:206
Post propagator for SetVar x
Definition set.hh:773