Create problem7_string_list.ipynb

Author: obitorin07

list/problem7_string_list.ipynb

@@ -0,0 +1,107 @@
+{
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+   "cell_type": "markdown",
+   "id": "1421b4aa-68b9-4d3c-9760-e7728aad28c8",
+   "metadata": {},
+   "source": [
+    "### \n",
+    "🧠 Problem: Character Frequency Counter\n",
+    "You are given a paragraph of text stored as a string. Your task is to:\n",
+    "\n",
+    "Ignore case sensitivity (treat A and a as same).\n",
+    "\n",
+    "Count how many times each character (a–z) appears in the text (ignore spaces, punctuation, numbers).\n",
+    "\n",
+    "Print the characters and their counts in alphabetical order."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 60,
+   "id": "7df9a0c5-3cae-4b83-b8c3-11f16d4bc2ad",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "A:5\n",
+      "C:2\n",
+      "D:2\n",
+      "E:9\n",
+      "F:4\n",
+      "G:1\n",
+      "I:7\n",
+      "K:1\n",
+      "L:3\n",
+      "M:1\n",
+      "N:6\n",
+      "O:3\n",
+      "P:2\n",
+      "R:2\n",
+      "S:3\n",
+      "T:2\n",
+      "U:2\n",
+      "Y:1\n"
+     ]
+    }
+   ],
+   "source": [
+    "text = \"Anime is life. Naruto and Luffy are legends! One Piece is peak fiction.\"\n",
+    "# text = 'kiraa'\n",
+    "\n",
+    "import re\n",
+    "\n",
+    "pattern =  re.findall(r'[a-z]' , text.lower())\n",
+    "emp_dict = {}\n",
+    "\n",
+    "for char in pattern:\n",
+    "    if char not in emp_dict:\n",
+    "        emp_dict[char] = 1\n",
+    "    else:\n",
+    "        emp_dict[char] += 1\n",
+    "sorted_dict = dict(sorted(emp_dict.items()))\n",
+    "for chars, val in sorted_dict.items():\n",
+    "    print(f\"{chars.upper()}:{val}\")\n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "6edf4299-c35a-4d45-ab03-2c38331a4202",
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "7cb9bb5d-f2c3-4057-8928-8acd56ea1c3d",
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  }
+ ],
+ "metadata": {
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+   "language": "python",
+   "name": "python3"
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+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
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+   "file_extension": ".py",
+   "mimetype": "text/x-python",
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+   "version": "3.12.7"
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+}