adding book

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diff --git a/C++_from_the_Ground/Chapter_22(1).ipynb b/C++_from_the_Ground/Chapter_22(1).ipynb
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+{
+ "metadata": {
+  "name": "Chapter 22"
+ },
+ "nbformat": 3,
+ "nbformat_minor": 0,
+ "worksheets": [
+  {
+   "cells": [
+    {
+     "cell_type": "markdown",
+     "metadata": {},
+     "source": "<h1>Chapter 22: The C++ Preprocessor<h1>"
+    },
+    {
+     "cell_type": "markdown",
+     "metadata": {},
+     "source": "<h3>Example 22.1, Page Number: 550<h3>"
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": "'''Implement a function-like macro'''\n\ndef MIN(a,b):\n    if a<b:\n        return a\n    else:\n        return b\n\n#Variable declaration\nx=10\ny=20\n\n#Result\nprint \"The minimum is\",MIN(x,y)",
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": "The minimum is 10\n"
+      }
+     ],
+     "prompt_number": 2
+    },
+    {
+     "cell_type": "markdown",
+     "metadata": {},
+     "source": "<h3>Example 22.2, Page Number: 551<h3>"
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": "'''Implement a function-like macro'''\n#Since macros is implemented here using functions,\n#it wont give a wrong answer.\n\ndef EVEN(a):\n    if a%2==0:\n        return 1\n    else:\n        return 0\n\nif EVEN(9+1):\n    print \"is even\"\nelse:\n    print \"is odd\"",
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": "is even\n"
+      }
+     ],
+     "prompt_number": 3
+    },
+    {
+     "cell_type": "markdown",
+     "metadata": {},
+     "source": "<h3>Example 22.3, Page Number: 551<h3>"
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": "'''Implement a function-like macro'''\n\ndef EVEN(a):\n    if a%2==0:\n        return 1\n    else:\n        return 0\n\nif EVEN(9+1):\n    print \"is even\"\nelse:\n    print \"is odd\"",
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": "is even\n"
+      }
+     ],
+     "prompt_number": 4
+    },
+    {
+     "cell_type": "markdown",
+     "metadata": {},
+     "source": "<h3>Example 22.4, Page Number: 553<h3>"
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": "'''Impementing #if'''\n\ndef MAX():\n    return 100\n\nif MAX()>10:\n    print \"Extra memory required.\"\n    ",
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": "Extra memory required.\n"
+      }
+     ],
+     "prompt_number": 5
+    },
+    {
+     "cell_type": "markdown",
+     "metadata": {},
+     "source": "<h3>Example 22.5, Page Number: 554<h3>"
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": "'''Impementing #if/#else'''\n\ndef MAX():\n    return 6\n\nif MAX()>10:\n    print \"Extra memory required.\"\nelse:\n    print \"Current memory OK.\"\n    ",
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": "Current memory OK.\n"
+      }
+     ],
+     "prompt_number": 7
+    },
+    {
+     "cell_type": "markdown",
+     "metadata": {},
+     "source": "<h3>Example 22.6, Page Number: 556<h3>"
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": "'''Implementation of #ifdef and #ifndef'''\n\ndef TOM():\n    pass\n\n\ntry:\n    TOM()\nexcept NameError:\n    print \"Programmer is unknown.\"\nelse:\n    print \"Programmer is Tom.\"\n    \ntry:\n    RALPH()\nexcept NameError:\n    print \"RALPH not defined.\"\n    ",
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": "Programmer is Tom.\nRALPH not defined.\n"
+      }
+     ],
+     "prompt_number": 8
+    },
+    {
+     "cell_type": "markdown",
+     "metadata": {},
+     "source": "<h3>Example 22.7, Page Number: 558<h3>"
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": "'''Implement __LINE__ '''\n\nimport inspect\n\n#Returns the current line number in our program.\ndef lineno():\n    return inspect.currentframe().f_back.f_lineno\n    \nprint lineno()+200\n",
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": "209\n"
+      }
+     ],
+     "prompt_number": 9
+    },
+    {
+     "cell_type": "markdown",
+     "metadata": {},
+     "source": "<h3>Example 22.8, Page Number: 559<h3>"
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": "'''Implemention # operator'''\n\ndef mkstr(s):\n    return str(s)\n\n#Result\nprint mkstr('I like C++')\n",
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": "I like C++\n"
+      }
+     ],
+     "prompt_number": 10
+    },
+    {
+     "cell_type": "markdown",
+     "metadata": {},
+     "source": "<h3>Example 22.9, Page Number: 560<h3>"
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": "'''Implemention # operator'''\n\ndef concat(a,b):\n    return a+b\n#Variable declaration\nxy=10\n\n#Result\nexec(\"print %s\")%concat('x','y')",
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": "10\n"
+      }
+     ],
+     "prompt_number": 11
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": "",
+     "language": "python",
+     "metadata": {},
+     "outputs": []
+    }
+   ],
+   "metadata": {}
+  }
+ ]
+}
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