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見直しキャンペーン中
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エラー文で検索したところ、`Solution solution = context.Solve();`と回答がありました。
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エラー文で検索したところ、`Solution solution = context.Solve();`と回答がありました。
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[Optimal portfolio model - error](https://social.msdn.microsoft.com/Forums/en-US/db991a49-4034-4d7b-bc85-313f42255d12/optimal-portfolio-model-error)
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```cs
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using System;
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using Microsoft.SolverFoundation.Services;
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namespace Questions217122
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{
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internal class Program
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{
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private static void Main()
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{
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var context = new SolverContext();
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var model = context.CreateModel();
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var b2 = new Decision(Domain.Integer, "b2");
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var b3 = new Decision(Domain.Integer, "b3");
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var b4 = new Decision(Domain.Integer, "b4");
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model.AddDecision(b2);
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model.AddDecision(b3);
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model.AddDecision(b4);
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model.AddConstraint("limit1", 10 <= b2 <= 30);
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model.AddConstraint("limit2", 2 <= b3 <= 10);
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model.AddConstraint("limit3", 2 <= b4 <= 100);
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model.AddConstraint("limit4", b2 / b3 <= b4 <= b2 / b3);
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model.AddGoal("Goal", GoalKind.Maximize, b4);
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var solution = context.Solve();
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var report = solution.GetReport();
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Console.WriteLine(report);
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}
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}
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}
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```
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実行結果
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```
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===Solution Details===
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Goals:
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Goal: 15
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Decisions:
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b2: 30
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b3: 2
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b4: 15
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```
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私は全く使ったことないので、これでいいのかわかりません。
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