Py_Assignment#3.ipynb

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      "Select operation.\n",
      "1.Add\n",
      "2.Subtract\n",
      "3.Multiply\n",
      "4.Divide\n",
      "Enter choice(1/2/3/4): 2\n",
      "Enter first number: 2\n",
      "Enter second number: 1\n",
      "2.0 - 1.0 = 1.0\n"
     ]
    }
   ],
   "source": [
    " \n",
    "def add(x, y):\n",
    "       return x + y\n",
    "\n",
    "def subtract(x, y):\n",
    "       return x - y\n",
    "\n",
    "\n",
    "def multiply(x, y):\n",
    "       return x * y\n",
    "\n",
    "\n",
    "def divide(x, y):\n",
    "       return x / y\n",
    "\n",
    "print(\"Select operation.\")\n",
    "print(\"1.Add\")\n",
    "print(\"2.Subtract\")\n",
    "print(\"3.Multiply\")\n",
    "print(\"4.Divide\")\n",
    "\n",
    "\n",
    "choice = input(\"Enter choice(1/2/3/4): \")\n",
    "\n",
    "num1 = float(input(\"Enter first number: \"))\n",
    "num2 = float(input(\"Enter second number: \"))\n",
    "\n",
    "if choice == '1':\n",
    "       print(num1,\"+\",num2,\"=\", add(num1,num2))\n",
    "\n",
    "elif choice == '2':\n",
    "       print(num1,\"-\",num2,\"=\", subtract(num1,num2))\n",
    "\n",
    "elif choice == '3':\n",
    "       print(num1,\"*\",num2,\"=\", multiply(num1,num2))\n",
    "\n",
    "elif choice == '4':\n",
    "       print(num1,\"/\",num2,\"=\", divide(num1,num2))\n",
    "else:\n",
    "       print(\"Invalid input\")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 14,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Element Exists\n",
      "Element Exists\n",
      "Element Exists\n",
      "Element Exists\n",
      "Element Exists\n",
      "Element Exists\n"
     ]
    }
   ],
   "source": [
    "test_list = [ 1, 6, 3, 5, 3, 4 ] \n",
    "for i in test_list: \n",
    "    if (4 in test_list): \n",
    "        print (\"Element Exists\")   "
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 15,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "{0: 10, 1: 20}\n",
      "{0: 10, 1: 20, 2: 30}\n"
     ]
    }
   ],
   "source": [
    "d = {0:10, 1:20}\n",
    "print(d)\n",
    "d.update({2:30})\n",
    "print(d)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 16,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Sum : 600\n"
     ]
    }
   ],
   "source": [
    "def returnSum(myDict): \n",
    "      \n",
    "    sum = 0\n",
    "    for i in myDict: \n",
    "        sum = sum + myDict[i] \n",
    "      \n",
    "    return sum\n",
    "  \n",
    "# Driver Function \n",
    "dict = {'a': 100, 'b':200, 'c':300} \n",
    "print(\"Sum :\", returnSum(dict))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 17,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "[20, 30, -20, 60]\n"
     ]
    }
   ],
   "source": [
    "def Repeat(x): \n",
    "    _size = len(x) \n",
    "    repeated = [] \n",
    "    for i in range(_size): \n",
    "        k = i + 1\n",
    "        for j in range(k, _size): \n",
    "            if x[i] == x[j] and x[i] not in repeated: \n",
    "                repeated.append(x[i]) \n",
    "    return repeated \n",
    "  \n",
    "# Driver Code \n",
    "list1 = [10, 20, 30, 20, 20, 30, 40,  \n",
    "         50, -20, 60, 60, -20, -20] \n",
    "print (Repeat(list1))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 24,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Key is present in the dictionary\n",
      "Key is not present in the dictionary\n"
     ]
    }
   ],
   "source": [
    "d = {1: 10, 2: 20, 3: 30, 4: 40, 5: 50, 6: 60}\n",
    "def is_key_present(x):\n",
    "  if x in d:\n",
    "      print('Key is present in the dictionary')\n",
    "  else:\n",
    "      print('Key is not present in the dictionary')\n",
    "is_key_present(5)\n",
    "is_key_present(9)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
  }
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