Saizeria.ipynb

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   "source": [
    "using CSV\n",
    "using JuMP\n",
    "using GLPK"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "metadata": {},
   "outputs": [],
   "source": [
    "df = CSV.read(\"menu.csv\");"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 24,
   "metadata": {},
   "outputs": [],
   "source": [
    "n = size(df, 1);"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 23,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
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     "text": [
      "Objective value: 1940.0\n",
      "ポテトのグリル1.0\n",
      "アーリオ・オーリオ(Wサイズ)1.0\n",
      "ラージライス1.0\n"
     ]
    }
   ],
   "source": [
    "m = Model(with_optimizer(GLPK.Optimizer))\n",
    "@variable(m, 0 <= x[1:n] <= 1, Int)\n",
    "@objective(m, Max, sum(df.calorie[i] * x[i] for i in 1:n))\n",
    "@constraint(m, sum(df.price[i] * x[i] for i in 1:n) <= 1000)\n",
    "\n",
    "status = optimize!(m)\n",
    "println(\"Objective value: \", objective_value(m))\n",
    "for i in 1:n\n",
    "    if value(x[i]) > 0\n",
    "        println(df.name[i], value(x[i]))\n",
    "    end\n",
    "end"
   ]
  },
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   "cell_type": "code",
   "execution_count": null,
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   "source": []
  }
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