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Author: PrashantVIT1

Trie/Trie_add_Search_using_dict.ipynb

@@ -0,0 +1,87 @@
+{
+ "cells": [
+  {
+   "cell_type": "code",
+   "execution_count": 18,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "class Trie:\n",
+    "    root = {}\n",
+    "    \n",
+    "    def add(self, word):\n",
+    "        cur = self.root\n",
+    "        \n",
+    "        for ch in word:\n",
+    "            if ch not in cur:\n",
+    "                cur[ch] = {}\n",
+    "            cur = cur[ch]\n",
+    "        cur['*'] = True\n",
+    "        \n",
+    "    def search(self,word):\n",
+    "        cur = self.root\n",
+    "        \n",
+    "        for ch in word:\n",
+    "            if ch not in cur:\n",
+    "                return False\n",
+    "            cur = cur[ch]\n",
+    "        if '*' in cur:\n",
+    "            return True\n",
+    "        else:\n",
+    "            return False\n",
+    "            \n",
+    "    "
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 21,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "True\n",
+      "False\n",
+      "True\n",
+      "True\n",
+      "True\n"
+     ]
+    }
+   ],
+   "source": [
+    "dictionary = Trie()\n",
+    "dictionary.add(\"pqr\")\n",
+    "dictionary.add(\"pqrst\")\n",
+    "print(dictionary.search(\"pqr\"))\n",
+    "print(dictionary.search(\"pq\"))\n",
+    "print(dictionary.search(\"p\"))\n",
+    "print(dictionary.search(\"pqrst\"))\n",
+    "dictionary.add(\"p\")\n",
+    "print(dictionary.search(\"p\"))"
+   ]
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Python 3",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.7.6"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 4
+}