started top 150 interview questions

SouvikDcoder · SouvikDcoder · commit c88cf190dd77 · 2022-10-18T11:22:40.000+05:30
diff --git a/leetcode_kuro_RnD.ipynb b/leetcode_kuro_RnD.ipynb
@@ -8802,6 +8802,128 @@
         "\n"
       ]
     },
+    {
+      "cell_type": "code",
+      "execution_count": 21,
+      "metadata": {},
+      "outputs": [
+        {
+          "name": "stdout",
+          "output_type": "stream",
+          "text": [
+            "['h', 'a', 'n', 'n', 'a', 'H']\n"
+          ]
+        }
+      ],
+      "source": [
+        "# 344 : https://leetcode.com/problems/reverse-string/\n",
+        "\n",
+        "s = [\"h\",\"e\",\"l\",\"l\",\"o\"]\n",
+        "s = [\"H\",\"a\",\"n\",\"n\",\"a\",\"h\"]       # [\"h\",\"a\",\"n\",\"n\",\"a\",\"H\"]\n",
+        "\n",
+        "# for i in range(len(s)-1,-1,-1):\n",
+        "#     s.insert(len(s)+1,s[i])\n",
+        "#     s.remove(s[i])\n",
+        "#     print(s)\n",
+        "\n",
+        "s[:] = s[::-1]\n",
+        "print(s)"
+      ]
+    },
+    {
+      "cell_type": "code",
+      "execution_count": 3,
+      "metadata": {},
+      "outputs": [
+        {
+          "name": "stdout",
+          "output_type": "stream",
+          "text": [
+            "['h', 'e', 'l', 'l', 'o']\n",
+            "['h', 'e', 'l', 'l', 'o', 'p']\n"
+          ]
+        }
+      ],
+      "source": [
+        "s = [\"h\",\"l\",\"e\",\"l\",\"l\",\"o\"]\n",
+        "\n",
+        "s.remove(\"l\")\n",
+        "print(s)\n",
+        "s.insert(6,\"p\")\n",
+        "print(s)"
+      ]
+    },
+    {
+      "cell_type": "code",
+      "execution_count": 25,
+      "metadata": {},
+      "outputs": [
+        {
+          "name": "stdout",
+          "output_type": "stream",
+          "text": [
+            "[[1, 2, 3], [1, 3, 2], [2, 1, 3], [2, 3, 1], [3, 1, 2], [3, 2, 1]]\n"
+          ]
+        }
+      ],
+      "source": [
+        "#  46 : https://leetcode.com/problems/permutations/\n",
+        "\n",
+        "import itertools as it\n",
+        "\n",
+        "nums = [1,2,3]\n",
+        "\n",
+        "nums_iter = list(map(list, list(it.permutations(nums,len(nums)))))\n",
+        "print(nums_iter)\n",
+        "\n",
+        "# for i,j in enumerate(nums_iter):\n",
+        "#     j = list(j)\n",
+        "\n",
+        "# print(nums_iter)"
+      ]
+    },
+    {
+      "cell_type": "code",
+      "execution_count": null,
+      "metadata": {},
+      "outputs": [],
+      "source": []
+    },
+    {
+      "cell_type": "code",
+      "execution_count": 20,
+      "metadata": {},
+      "outputs": [
+        {
+          "ename": "ValueError",
+          "evalue": "invalid literal for int() with base 10: '1 2 3 56'",
+          "output_type": "error",
+          "traceback": [
+            "\u001b[1;31m---------------------------------------------------------------------------\u001b[0m",
+            "\u001b[1;31mValueError\u001b[0m                                Traceback (most recent call last)",
+            "Cell \u001b[1;32mIn [20], line 1\u001b[0m\n\u001b[1;32m----> 1\u001b[0m n \u001b[39m=\u001b[39m \u001b[39mint\u001b[39;49m(\u001b[39minput\u001b[39;49m(\u001b[39m\"\u001b[39;49m\u001b[39mEnter number of elements : \u001b[39;49m\u001b[39m\"\u001b[39;49m))\n\u001b[0;32m      3\u001b[0m list_1 \u001b[39m=\u001b[39m \u001b[39mlist\u001b[39m(\u001b[39mmap\u001b[39m(\u001b[39mint\u001b[39m, \u001b[39minput\u001b[39m(\u001b[39m\"\u001b[39m\u001b[39m\\n\u001b[39;00m\u001b[39mEnter the numbers : \u001b[39m\u001b[39m\"\u001b[39m)\u001b[39m.\u001b[39mstrip()\u001b[39m.\u001b[39msplit()))[:n]\n\u001b[0;32m      4\u001b[0m \u001b[39mprint\u001b[39m(\u001b[39m\"\u001b[39m\u001b[39m\\n\u001b[39;00m\u001b[39mList is - \u001b[39m\u001b[39m\"\u001b[39m, list_1)\n",
+            "\u001b[1;31mValueError\u001b[0m: invalid literal for int() with base 10: '1 2 3 56'"
+          ]
+        }
+      ],
+      "source": [
+        "n = int(input(\"Enter number of elements : \"))\n",
+        "\n",
+        "list_1 = list(map(int, input(\"\\nEnter the numbers : \").strip().split()))[:n]\n",
+        "print(\"\\nList is - \", list_1)\n",
+        "def absolute_value(num):\n",
+        "    return abs(num)\n",
+        "\n",
+        "\n",
+        "list_2 = list_1.sort(key = absolute_value)\n",
+        "print(list_2)\n",
+        "def length_of_list(list_2):\n",
+        "    for i in list_2:\n",
+        "        for j in list_2:\n",
+        "            if abs(i) == abs(j) and i < j:\n",
+        "                print('here')"
+      ]
+    },
     {
       "cell_type": "markdown",
       "metadata": {},
