wedding_sim_4.ipynb

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   "source": [
    "prob += (lpSum([1.0 * var for var \n",
    "                in guest_table_ind.values()]),\n",
    "        'Objective function')"
   ]
  },
  {
   "cell_type": "code",
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   "metadata": {
    "collapsed": true
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   "source": [
    "# Define basic constraints\n",
    "\n",
    "min_table_sz = 8\n",
    "max_table_sz = 12\n",
    "\n",
    "# Every guest must be assigned to a table\n",
    "for guest in guests:\n",
    "    guests_tables = [guest_table_ind[guest, table] \n",
    "                     for table in tables]\n",
    "    prob += (lpSum(guests_tables) == 1, \n",
    "             '{} must have a table'.format(guest))\n",
    "\n",
    "# Constrain number of guests per table\n",
    "for table in tables:\n",
    "    tables_guests = [guest_table_ind[guest, table] \n",
    "                     for guest in guests]\n",
    "    prob += (lpSum(tables_guests) >= min_table_sz,\n",
    "            'Min guests per table {}'.format(table))\n",
    "    prob += (lpSum(tables_guests) <= max_table_sz,\n",
    "            'Max guests per table {}'.format(table))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 7,
   "metadata": {
    "collapsed": true
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   "outputs": [],
   "source": [
    "# Pairing and antipairing constraints\n",
    "\n",
    "for guest_a, guest_b in pair_constr:\n",
    "    for table in tables:\n",
    "        pair_a = guest_table_ind[guest_a, table]\n",
    "        pair_b = guest_table_ind[guest_b, table]\n",
    "        prob += (pair_a == pair_b,\n",
    "                 'Pair {} with {} at table {}'.format(\n",
    "                     guest_a, guest_b, table))\n",
    "\n",
    "for guest_a, guest_b in anti_constr:\n",
    "    for table in tables:\n",
    "        anti_a = guest_table_ind[guest_a, table]\n",
    "        anti_b = guest_table_ind[guest_b, table]\n",
    "        prob += (anti_a != anti_b,\n",
    "                 'Dont pair {} with {} at table {}'.format(\n",
    "                     guest_a, guest_b, table))"
   ]
  }
 ],
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