Merge Sort.ipynb

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   "source": [
    "## Merge Sort"
   ]
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     "text": [
      "The unsorted list is: [21, 77, 31, 44, 55, 20]\n",
      "The sorted list1 is: [20, 21, 31, 44, 55, 77]\n"
     ]
    }
   ],
   "source": [
    "def mergeSort(myList):\n",
    "    if len(myList) > 1:\n",
    "        mid = len(myList) // 2\n",
    "        left = myList[:mid]\n",
    "        right = myList[mid:]\n",
    "\n",
    "        mergeSort(left)\n",
    "        mergeSort(right)\n",
    "\n",
    "        i = 0\n",
    "        j = 0\n",
    "        k = 0\n",
    "        \n",
    "        while i < len(left) and j < len(right):\n",
    "            if left[i] <= right[j]:\n",
    "              myList[k] = left[i]\n",
    "              i += 1\n",
    "            else:\n",
    "                myList[k] = right[j]\n",
    "                j += 1\n",
    "            k += 1\n",
    "\n",
    "        while i < len(left):\n",
    "            myList[k] = left[i]\n",
    "            i += 1\n",
    "            k += 1\n",
    "\n",
    "        while j < len(right):\n",
    "            myList[k]=right[j]\n",
    "            j += 1\n",
    "            k += 1\n",
    "\n",
    "myList = [21,77,31,44,55,20]\n",
    "print(\"The unsorted list is:\",myList)\n",
    "mergeSort(myList)\n",
    "print(\"The sorted list1 is:\",myList)"
   ]
  }
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