Stack QUEUE Added

Author: soumyadip007

MISC/Untitled.ipynb renamed to MISC/Queue.ipynb

@@ -0,0 +1,79 @@
+{
+ "cells": [
+  {
+   "cell_type": "code",
+   "execution_count": 1,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "3\n",
+      "Popped:  3\n",
+      "Popped:  2\n",
+      "1\n",
+      "Peek: 1\n",
+      "1\n"
+     ]
+    }
+   ],
+   "source": [
+    "\n",
+    "class Stack:\n",
+    "\n",
+    "    def __init__(self):\n",
+    "        self.stack = []\n",
+    "    \n",
+    "    def isEmpty(self):\n",
+    "        return self.stack == []\n",
+    "\n",
+    "    def push(self, data):\n",
+    "        self.stack.append(data)\n",
+    "\n",
+    "    def pop(self):\n",
+    "        data = self.stack[-1]\n",
+    "        del self.stack[-1]\n",
+    "        return data\n",
+    "\n",
+    "    def peek(self):\n",
+    "        return self.stack[-1]\n",
+    "\n",
+    "    def sizeStack(self):\n",
+    "        return len(self.stack)\n",
+    "    \n",
+    "stack = Stack()\n",
+    "stack.push(1)\n",
+    "stack.push(2)\n",
+    "stack.push(3)\n",
+    "print(stack.sizeStack())\n",
+    "print(\"Popped: \", stack.pop())\n",
+    "print(\"Popped: \", stack.pop())\n",
+    "print(stack.sizeStack())\n",
+    "print(\"Peek:\", stack.peek())\n",
+    "print(stack.sizeStack())"
+   ]
+  }
+ ],
+ "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": "3.7.4"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 4
+}