49 lines
1.3 KiB
C++
49 lines
1.3 KiB
C++
// Copyright 2010-2024 Google LLC
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include <stdlib.h>
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#include "absl/types/span.h"
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#include "ortools/sat/cp_model.h"
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namespace operations_research {
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namespace sat {
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void ReifiedSampleSat() {
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CpModelBuilder cp_model;
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const BoolVar x = cp_model.NewBoolVar();
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const BoolVar y = cp_model.NewBoolVar();
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const BoolVar b = cp_model.NewBoolVar();
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// First version using a half-reified bool and.
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cp_model.AddBoolAnd({x, ~y}).OnlyEnforceIf(b);
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// Second version using implications.
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cp_model.AddImplication(b, x);
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cp_model.AddImplication(b, ~y);
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// Third version using bool or.
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cp_model.AddBoolOr({~b, x});
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cp_model.AddBoolOr({~b, ~y});
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}
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} // namespace sat
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} // namespace operations_research
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int main() {
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operations_research::sat::ReifiedSampleSat();
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return EXIT_SUCCESS;
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}
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