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+{
+ "metadata": {
+ "name": "",
+ "signature": "sha256:af2735a34ebb2cb3c8a379aacf70cb46d8ee4a8ed09afacd9b5d0d21e0a0dd5a"
+ },
+ "nbformat": 3,
+ "nbformat_minor": 0,
+ "worksheets": [
+ {
+ "cells": [
+ {
+ "cell_type": "heading",
+ "level": 1,
+ "metadata": {},
+ "source": [
+ "Chapter 10 : Dynamic Memory Allocation"
+ ]
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 10.1, Page No 229"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import sys\n",
+ "class employee:\n",
+ " def __init__(self,id1,name,salary):\n",
+ " self.id1 = id1\n",
+ " self.name = name\n",
+ " self.salary = salary\n",
+ "e = employee(10,\"abc\",12000.02)\n",
+ "x = 1\n",
+ "f = 1.1\n",
+ "d = 1111.11\n",
+ "c = 'C'\n",
+ "print \"Sizo of integer : \" + str(sys.getsizeof(x)) + \"bytes \\n\"\n",
+ "print \"Sizo of float : \" + str(sys.getsizeof(f)) + \"bytes \\n\"\n",
+ "print \"Sizo of double : \" + str(sys.getsizeof(d)) + \"bytes \\n\"\n",
+ "print \"Sizo of char : \" + str(sys.getsizeof(c)) + \"bytes \\n\"\n",
+ "print \"Sizo of employee structure : \" + str(sys.getsizeof(e)) + \"bytes \\n\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Sizo of integer : 24bytes \n",
+ "\n",
+ "Sizo of float : 24bytes \n",
+ "\n",
+ "Sizo of double : 24bytes \n",
+ "\n",
+ "Sizo of char : 34bytes \n",
+ "\n",
+ "Sizo of employee structure : 64bytes \n",
+ "\n"
+ ]
+ }
+ ],
+ "prompt_number": 3
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 10.2, Page No 230"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import sys\n",
+ "array = []\n",
+ "\n",
+ "print \"\\nSize of array: \" + str(sys.getsizeof(array)) + \"bytes\\n\"\n",
+ "print \"Number of elements in array \"\n",
+ "print str(sys.getsizeof(array) / sys.getsizeof(int)) + \"\\n\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "\n",
+ "Size of array: 64bytes\n",
+ "\n",
+ "Number of elements in array \n",
+ "0\n",
+ "\n"
+ ]
+ }
+ ],
+ "prompt_number": 4
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 10.3, Page No 231"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "# there is no malloc function"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [],
+ "prompt_number": 2
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 10.4, Page No 232"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "# there is no malloc function"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [],
+ "prompt_number": 3
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 10.5, Page No 232"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "# there is no malloc function"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [],
+ "prompt_number": 4
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 10.6, Page No 233"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "# there is no malloc function\n",
+ "#if name is None:\n",
+ "# print \"\\nOut of memory!\\n\"\n",
+ "#else:\n",
+ "# print \"\\nMemory allocated.\\n\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [],
+ "prompt_number": 6
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 10.7, Page No 234"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "# there is no malloc function\n",
+ "#if name is not None:\n",
+ "# name = raw_input(\"Enter your name: \")\n",
+ "# print \"\\nHi \" + name + \"\\n\" "
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [],
+ "prompt_number": 7
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 10.8, Page No 235"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "# there is no malloc function\n",
+ "#if name is not None:\n",
+ "# name = raw_input(\"Enter your name: \")\n",
+ "# print \"\\nHi \" + name + \"\\n\"\n",
+ "# del name"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [],
+ "prompt_number": 10
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 10.9, Page No 236"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "# there is no malloc function\n",
+ "#if numbers is None:\n",
+ "# return\n",
+ "#numbers[0] = 100\n",
+ "#numbers[1] = 200\n",
+ "#numbers[2] = 300\n",
+ "#numbers[3] = 400\n",
+ "#numbers[4] = 500\n",
+ "#print \"\\nIndividual memory segments initialized to:\\n\"\n",
+ "#for x in range(5):\n",
+ "# print \"numbers[\" +x+\"] = \\n\" + numbers[x]"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [],
+ "prompt_number": 16
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 10.10, Page No 237"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "# there is no calloc function\n",
+ "#if numbers is None:\n",
+ "# return"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [],
+ "prompt_number": 17
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 10.11, Page No 239"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "# there is no malloc function\n",
+ "#if numbers is None:\n",
+ "# print \"\\nOut of memory!\\n\"\n",
+ "# return\n",
+ "#else:\n",
+ "# number = newNumber\n",
+ "# for x in range(10):\n",
+ "# numbers[x] = x * 10\n",
+ "# print \"\\nExpanded memory:\\n\"\n",
+ "# for x in range(10):\n",
+ "# print \"numbers[\" +x+\"] = \\n\" + numbers[x]\n",
+ "# del number"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [],
+ "prompt_number": 18
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 10.12, Page No 241"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import random\n",
+ "# there is no calloc function\n",
+ "#time\n",
+ "#print \"\\nMath Quiz\\n\\n\"\n",
+ "#response = raw_input(\"Enter # of problems: \")\n",
+ "#if op1 is None || op2 is None || answer is None ||result is None:\n",
+ "# print \"\\nOut of Memory!\\n\"\n",
+ "# return\n",
+ "#for x in range(response):\n",
+ "# op1[x] = random.randint(1,200) % 100\n",
+ "# op2[x] = random.randint(1,200) % 100\n",
+ "# print \"\\n\" + op1[x] + \"+\" + op2[x]\"\n",
+ "# answer[x] = raw_input(\"\")\n",
+ "# if answer[x] == op1[x] + op2[x]:\n",
+ "# result[x] = 'c'\n",
+ "# else:\n",
+ "# result[x] = 'i'\n",
+ "#print \"\\nQuiz Results\\n\"\n",
+ "#print \"\\nQuestion\\tYour Answer\\tCorrect\\n\"\n",
+ "#for x in range(response):\n",
+ "# if result[x] == 'c':\n",
+ "# print op1[x] + \"+\" + op2[x] + \"\\t\\t\" + answer[x] + \"\\t\\tYes\\n\"\n",
+ "# else:\n",
+ "# print op1[x] + \"+\" + op2[x] + \"\\t\\t\" + answer[x] + \"\\t\\tNo\\n\"\n",
+ "#del op1\n",
+ "#del op2\n",
+ "#del answer\n",
+ "#del result "
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [],
+ "prompt_number": 20
+ }
+ ],
+ "metadata": {}
+ }
+ ]
+} \ No newline at end of file
generated by cgit (git 2.34.1) at 2025-01-24 05:17:49 +0000