03 list_union_intersection.ipynb

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    "## 3. Write a Python program to find the union and intersection of two lists."
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     "text": [
      "Enter the elements of the List 1:  10 20 30 50 60\n",
      "Enter the elements of the List 2:  20 30 40 70 80\n"
     ]
    },
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     "name": "stdout",
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     "text": [
      "Union of lists is :  ['10', '20', '30', '50', '60', '40', '70', '80']\n",
      "Intersection of lists is : ['20', '30']\n"
     ]
    }
   ],
   "source": [
    "def list_union(list1, list2):\n",
    "    union_list = list1[:]\n",
    "    \n",
    "    for item in list2:\n",
    "        if item not in union_list:\n",
    "            union_list.append(item)\n",
    "    return union_list\n",
    "\n",
    "def list_intersection(list1, list2):\n",
    "    intersection_list = []\n",
    "    for item in list1:\n",
    "        if item in list2 and item not in intersection_list:\n",
    "            intersection_list.append(item)\n",
    "    return intersection_list\n",
    "\n",
    "list1 = list(map(str, input(\"Enter the elements of the List 1: \").split()))\n",
    "list2 = list(map(str, input(\"Enter the elements of the List 2: \").split()))\n",
    "list3 = list_union(list1,list2)\n",
    "list4 = list_intersection(list1,list2)\n",
    "print\n",
    "print('Union of lists is : ',list3)\n",
    "print('Intersection of lists is :',list4)"
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