removing problem statements

1 files changed, 345 insertions, 47 deletions

diff --git a/Schaum's_Outlines_-_Programming_with_C++/ch7.ipynb b/Schaum's_Outlines_-_Programming_with_C++/ch7.ipynb
index f480fc86..ddb6c93a 100644
--- a/Schaum's_Outlines_-_Programming_with_C++/ch7.ipynb
+++ b/Schaum's_Outlines_-_Programming_with_C++/ch7.ipynb
@@ -1,6 +1,7 @@
 {
  "metadata": {
-  "name": "ch7"
+  "name": "",
+  "signature": "sha256:377256b0fa2c7d29cc10649b14b8b11810b96406c47eeeedd29df767b23be14b"
  },
  "nbformat": 3,
  "nbformat_minor": 0,
@@ -10,14 +11,24 @@
     {
      "cell_type": "code",
      "collapsed": false,
-     "input": "'''\nEXAMPLE 7.1 Printing Pointer Values\n'''\n\nn=44\nprint \"n = \" , n \n# prints the value of n\nprint \"&n = \" , hex(id(n)) # prints the address of n\n",
+     "input": [
+      "\n",
+      "\n",
+      "n=44\n",
+      "print \"n = \" , n \n",
+      "# prints the value of n\n",
+      "print \"&n = \" , hex(id(n)) # prints the address of n\n"
+     ],
      "language": "python",
      "metadata": {},
      "outputs": [
       {
        "output_type": "stream",
        "stream": "stdout",
-       "text": "n =  44\n&n =  0x8fc0eec\n"
+       "text": [
+        "n =  44\n",
+        "&n =  0x8fc0eec\n"
+       ]
       }
      ],
      "prompt_number": 1
@@ -25,14 +36,30 @@
     {
      "cell_type": "code",
      "collapsed": false,
-     "input": "'''\nEXAMPLE 7.2\nNote : Python doesn't support reference/pointer variable. But can be achieved by using mutable datatypes i.e. list.\n'''\n\n\nn = [44]\nrn=n # r is a synonym for n\nprint \"n = \" , n , \", rn = \" , rn \nn[0] -= 1\nprint \"n = \" , n , \", rn = \" , rn \nrn[0] *= 2\nprint \"n = \" , n , \", rn = \" , rn \n\n",
+     "input": [
+      "\n",
+      "\n",
+      "\n",
+      "n = [44]\n",
+      "rn=n # r is a synonym for n\n",
+      "print \"n = \" , n , \", rn = \" , rn \n",
+      "n[0] -= 1\n",
+      "print \"n = \" , n , \", rn = \" , rn \n",
+      "rn[0] *= 2\n",
+      "print \"n = \" , n , \", rn = \" , rn \n",
+      "\n"
+     ],
      "language": "python",
      "metadata": {},
      "outputs": [
       {
        "output_type": "stream",
        "stream": "stdout",
-       "text": "n =  [44] , rn =  [44]\nn =  [43] , rn =  [43]\nn =  [86] , rn =  [86]\n"
+       "text": [
+        "n =  [44] , rn =  [44]\n",
+        "n =  [43] , rn =  [43]\n",
+        "n =  [86] , rn =  [86]\n"
+       ]
       }
      ],
      "prompt_number": 2
@@ -40,14 +67,26 @@
     {
      "cell_type": "code",
      "collapsed": false,
-     "input": "'''\nEXAMPLE 7.3 References Are Not Separate Variables\n'''\n\n\nn = [44]\nrn=n # r is a synonym for n\nprint \"&n = \" , hex(id(n)) , \", rn = \" , hex(id(rn ))\nrn2 = n\nrn3 = rn\nprint \"&rn2 = \" , hex(id(rn2)) , \", rn = \" , hex(id(rn ))\n",
+     "input": [
+      "\n",
+      "\n",
+      "n = [44]\n",
+      "rn=n # r is a synonym for n\n",
+      "print \"&n = \" , hex(id(n)) , \", rn = \" , hex(id(rn ))\n",
+      "rn2 = n\n",
+      "rn3 = rn\n",
+      "print \"&rn2 = \" , hex(id(rn2)) , \", rn = \" , hex(id(rn ))\n"
+     ],
      "language": "python",
      "metadata": {},
      "outputs": [
       {
        "output_type": "stream",
        "stream": "stdout",
-       "text": "&n =  0x9c6228c , rn =  0x9c6228c\n&rn2 =  0x9c6228c , rn =  0x9c6228c\n"
+       "text": [
+        "&n =  0x9c6228c , rn =  0x9c6228c\n",
+        "&rn2 =  0x9c6228c , rn =  0x9c6228c\n"
+       ]
       }
      ],
      "prompt_number": 3
@@ -55,14 +94,26 @@
     {
      "cell_type": "code",
      "collapsed": false,
-     "input": "'''\nEXAMPLE 7.4 Using Pointer Variables\n\n'''\n\nn = [44]\nprint \"n = \" , n , \", &n = \" , hex(id(n))\npn = n\nprint \"pn = \" , hex(id(pn)) , \", &pn = \" , hex(id(hex(id(pn))))\n\n\n",
+     "input": [
+      "\n",
+      "\n",
+      "n = [44]\n",
+      "print \"n = \" , n , \", &n = \" , hex(id(n))\n",
+      "pn = n\n",
+      "print \"pn = \" , hex(id(pn)) , \", &pn = \" , hex(id(hex(id(pn))))\n",
+      "\n",
+      "\n"
+     ],
      "language": "python",
      "metadata": {},
      "outputs": [
       {
        "output_type": "stream",
        "stream": "stdout",
-       "text": "n =  [44] , &n =  0x9c624ec\npn =  0x9c624ec , &pn =  0x9c6aa60\n"
+       "text": [
+        "n =  [44] , &n =  0x9c624ec\n",
+        "pn =  0x9c624ec , &pn =  0x9c6aa60\n"
+       ]
       }
      ],
      "prompt_number": 4
@@ -70,14 +121,28 @@
     {
      "cell_type": "code",
      "collapsed": false,
-     "input": "'''\nEXAMPLE 7.5\n'''\n\nn = [44]\nprint \"n = \" , n , \", &n = \" , hex(id(n))\npn = n\nprint \"\\tpn = \" , hex(id(pn)) , \",\\n &pn = \" , hex(id(hex(id(pn))))\nprint \"*pn = \" , pn\n\n",
+     "input": [
+      "\n",
+      "\n",
+      "n = [44]\n",
+      "print \"n = \" , n , \", &n = \" , hex(id(n))\n",
+      "pn = n\n",
+      "print \"\\tpn = \" , hex(id(pn)) , \",\\n &pn = \" , hex(id(hex(id(pn))))\n",
+      "print \"*pn = \" , pn\n",
+      "\n"
+     ],
      "language": "python",
      "metadata": {},
      "outputs": [
       {
        "output_type": "stream",
        "stream": "stdout",
-       "text": "n =  [44] , &n =  0x9c58d6c\n\tpn =  0x9c58d6c ,\n &pn =  0x9c6ab20\n*pn =  [44]\n"
+       "text": [
+        "n =  [44] , &n =  0x9c58d6c\n",
+        "\tpn =  0x9c58d6c ,\n",
+        " &pn =  0x9c6ab20\n",
+        "*pn =  [44]\n"
+       ]
       }
      ],
      "prompt_number": 5
@@ -85,14 +150,36 @@
     {
      "cell_type": "code",
      "collapsed": false,
-     "input": "'''\nEXAMPLE 7.6 \n'''\n\nn = [44]\nprint \"n = \" , n , \", &n = \" , hex(id(n))\npn = n\nprint \"\\tpn = \" , hex(id(pn)) , \",\\n &pn = \" , hex(id(hex(id(pn))))\nprint \"*pn = \" , pn\nppn = pn\n\nprint \" ppn = \" , hex(id(hex(id(ppn)))) \nprint \" &ppn = \" , hex(id(hex(id(hex(id(ppn))))))\nprint \" *ppn = \" , hex(id(ppn)) \nprint \"**ppn = \" , ppn \n",
+     "input": [
+      "\n",
+      "n = [44]\n",
+      "print \"n = \" , n , \", &n = \" , hex(id(n))\n",
+      "pn = n\n",
+      "print \"\\tpn = \" , hex(id(pn)) , \",\\n &pn = \" , hex(id(hex(id(pn))))\n",
+      "print \"*pn = \" , pn\n",
+      "ppn = pn\n",
+      "\n",
+      "print \" ppn = \" , hex(id(hex(id(ppn)))) \n",
+      "print \" &ppn = \" , hex(id(hex(id(hex(id(ppn))))))\n",
+      "print \" *ppn = \" , hex(id(ppn)) \n",
+      "print \"**ppn = \" , ppn \n"
+     ],
      "language": "python",
      "metadata": {},
      "outputs": [
       {
        "output_type": "stream",
        "stream": "stdout",
-       "text": "n =  [44] , &n =  0x9bf05ac\n\tpn =  0x9bf05ac ,\n &pn =  0x9c58160\n*pn =  [44]\n ppn =  0x9c58680\n &ppn =  0x9c58160\n *ppn =  0x9bf05ac\n**ppn =  [44]\n"
+       "text": [
+        "n =  [44] , &n =  0x9bf05ac\n",
+        "\tpn =  0x9bf05ac ,\n",
+        " &pn =  0x9c58160\n",
+        "*pn =  [44]\n",
+        " ppn =  0x9c58680\n",
+        " &ppn =  0x9c58160\n",
+        " *ppn =  0x9bf05ac\n",
+        "**ppn =  [44]\n"
+       ]
       }
      ],
      "prompt_number": 6
@@ -100,14 +187,39 @@
     {
      "cell_type": "code",
      "collapsed": false,
-     "input": "'''\nEXAMPLE 7.7\n'''\n\nn = [44]\nprint \"n = \" , n , \"\\n &n = \" , hex(id(n))\npn = n\nprint \"\\tpn = \" , hex(id(pn)) , \",\\n &pn = \" , hex(id(hex(id(pn))))\nprint \"*pn = \" , pn\nnn = pn\nprint \" ppn = \" , hex(id(nn))\nprint \" &ppn = \" , hex(id(hex(id(nn))))\nrpn = pn\nprint \" ppn = \" , hex(id(rpn))\nprint \" &ppn = \" , hex(id(hex(id(rpn))))\n\n\n",
+     "input": [
+      "\n",
+      "n = [44]\n",
+      "print \"n = \" , n , \"\\n &n = \" , hex(id(n))\n",
+      "pn = n\n",
+      "print \"\\tpn = \" , hex(id(pn)) , \",\\n &pn = \" , hex(id(hex(id(pn))))\n",
+      "print \"*pn = \" , pn\n",
+      "nn = pn\n",
+      "print \" ppn = \" , hex(id(nn))\n",
+      "print \" &ppn = \" , hex(id(hex(id(nn))))\n",
+      "rpn = pn\n",
+      "print \" ppn = \" , hex(id(rpn))\n",
+      "print \" &ppn = \" , hex(id(hex(id(rpn))))\n",
+      "\n",
+      "\n"
+     ],
      "language": "python",
      "metadata": {},
      "outputs": [
       {
        "output_type": "stream",
        "stream": "stdout",
-       "text": "n =  [44] \n &n =  0x9bf60ec\n\tpn =  0x9bf60ec ,\n &pn =  0x9bf0e40\n*pn =  [44]\n ppn =  0x9bf60ec\n &ppn =  0x9bf0e40\n ppn =  0x9bf60ec\n &ppn =  0x9bf0f20\n"
+       "text": [
+        "n =  [44] \n",
+        " &n =  0x9bf60ec\n",
+        "\tpn =  0x9bf60ec ,\n",
+        " &pn =  0x9bf0e40\n",
+        "*pn =  [44]\n",
+        " ppn =  0x9bf60ec\n",
+        " &ppn =  0x9bf0e40\n",
+        " ppn =  0x9bf60ec\n",
+        " &ppn =  0x9bf0f20\n"
+       ]
       }
      ],
      "prompt_number": 7
@@ -115,14 +227,32 @@
     {
      "cell_type": "code",
      "collapsed": false,
-     "input": "'''\nEXAMPLE 7.8\n'''\n\ndef max_(m,n):\n    if m>n:\n        return m\n    else:\n        return n\n\nm = 44\nn = 22\nprint m , \", \" , n , \", \" , max_(m,n)\nm = max_(m,n) \nm = 55\n# changes the value of m from 44 to 55\nprint m , \", \" , n , \", \" , max_(m,n) \n",
+     "input": [
+      "\n",
+      "def max_(m,n):\n",
+      "    if m>n:\n",
+      "        return m\n",
+      "    else:\n",
+      "        return n\n",
+      "\n",
+      "m = 44\n",
+      "n = 22\n",
+      "print m , \", \" , n , \", \" , max_(m,n)\n",
+      "m = max_(m,n) \n",
+      "m = 55\n",
+      "# changes the value of m from 44 to 55\n",
+      "print m , \", \" , n , \", \" , max_(m,n) \n"
+     ],
      "language": "python",
      "metadata": {},
      "outputs": [
       {
        "output_type": "stream",
        "stream": "stdout",
-       "text": "44 ,  22 ,  44\n55 ,  22 ,  55\n"
+       "text": [
+        "44 ,  22 ,  44\n",
+        "55 ,  22 ,  55\n"
+       ]
       }
      ],
      "prompt_number": 8
@@ -130,14 +260,28 @@
     {
      "cell_type": "code",
      "collapsed": false,
-     "input": "'''\nEXAMPLE 7.9 \n'''\n\nv = []\nfor k in range(1,5):\n    v.append(1.0/k)\n\nfor i in range(4):\n    print \"v[\" , i , \"] = \" , v[i]\n",
+     "input": [
+      "\n",
+      "\n",
+      "v = []\n",
+      "for k in range(1,5):\n",
+      "    v.append(1.0/k)\n",
+      "\n",
+      "for i in range(4):\n",
+      "    print \"v[\" , i , \"] = \" , v[i]\n"
+     ],
      "language": "python",
      "metadata": {},
      "outputs": [
       {
        "output_type": "stream",
        "stream": "stdout",
-       "text": "v[ 0 ] =  1.0\nv[ 1 ] =  0.5\nv[ 2 ] =  0.333333333333\nv[ 3 ] =  0.25\n"
+       "text": [
+        "v[ 0 ] =  1.0\n",
+        "v[ 1 ] =  0.5\n",
+        "v[ 2 ] =  0.333333333333\n",
+        "v[ 3 ] =  0.25\n"
+       ]
       }
      ],
      "prompt_number": 9
@@ -145,14 +289,34 @@
     {
      "cell_type": "code",
      "collapsed": false,
-     "input": "'''\nEXAMPLE 7.10 \n'''\nimport sys\na = [22, 33, 44]\n\nprint  \"a = \" , hex(id(a))\nprint \"sizeof(int) = \" , sys.getsizeof(1) \ns = 0\nfor i in a:\n    s += i\n    print \"\\t i = \" , hex(id(i)),\n    print \"\\t *i = \" , i,\n    print \"\\t sum = \" , s\n\n",
+     "input": [
+      "\n",
+      "import sys\n",
+      "a = [22, 33, 44]\n",
+      "\n",
+      "print  \"a = \" , hex(id(a))\n",
+      "print \"sizeof(int) = \" , sys.getsizeof(1) \n",
+      "s = 0\n",
+      "for i in a:\n",
+      "    s += i\n",
+      "    print \"\\t i = \" , hex(id(i)),\n",
+      "    print \"\\t *i = \" , i,\n",
+      "    print \"\\t sum = \" , s\n",
+      "\n"
+     ],
      "language": "python",
      "metadata": {},
      "outputs": [
       {
        "output_type": "stream",
        "stream": "stdout",
-       "text": "a =  0x9bf688c\nsizeof(int) =  12\n\t i =  0x8fc0ff4 \t *i =  22 \t sum =  22\n\t i =  0x8fc0f70 \t *i =  33 \t sum =  55\n\t i =  0x8fc0eec \t *i =  44 \t sum =  99\n"
+       "text": [
+        "a =  0x9bf688c\n",
+        "sizeof(int) =  12\n",
+        "\t i =  0x8fc0ff4 \t *i =  22 \t sum =  22\n",
+        "\t i =  0x8fc0f70 \t *i =  33 \t sum =  55\n",
+        "\t i =  0x8fc0eec \t *i =  44 \t sum =  99\n"
+       ]
       }
      ],
      "prompt_number": 10
@@ -160,14 +324,29 @@
     {
      "cell_type": "code",
      "collapsed": false,
-     "input": "'''\nEXAMPLE 7.11 Examining the Addresses of Array Elements\n'''\n\na = [22, 33, 44, 55, 66]\nprint \"a = \" , hex(id(a)) , \", *a = \" , a[0] \nfor p in a:\n    print \"p = \" , hex(id(p)) , \", *p = \" , p \n\n",
+     "input": [
+      "\n",
+      "\n",
+      "a = [22, 33, 44, 55, 66]\n",
+      "print \"a = \" , hex(id(a)) , \", *a = \" , a[0] \n",
+      "for p in a:\n",
+      "    print \"p = \" , hex(id(p)) , \", *p = \" , p \n",
+      "\n"
+     ],
      "language": "python",
      "metadata": {},
      "outputs": [
       {
        "output_type": "stream",
        "stream": "stdout",
-       "text": "a =  0x9c6526c , *a =  22\np =  0x8fc0ff4 , *p =  22\np =  0x8fc0f70 , *p =  33\np =  0x8fc0eec , *p =  44\np =  0x8fc0e68 , *p =  55\np =  0x8fc0de4 , *p =  66\n"
+       "text": [
+        "a =  0x9c6526c , *a =  22\n",
+        "p =  0x8fc0ff4 , *p =  22\n",
+        "p =  0x8fc0f70 , *p =  33\n",
+        "p =  0x8fc0eec , *p =  44\n",
+        "p =  0x8fc0e68 , *p =  55\n",
+        "p =  0x8fc0de4 , *p =  66\n"
+       ]
       }
      ],
      "prompt_number": 11
@@ -175,14 +354,44 @@
     {
      "cell_type": "code",
      "collapsed": false,
-     "input": "'''\nEXAMPLE 7.12 Pattern Matching\n'''\n\ndef loc(a1,a2,n1,n2):\n    p = []\n    for element in a2:\n        if element in a1:\n            p.append(element)\n    return p\n\na1 = [11, 11, 11, 11, 11, 22, 33, 44, 55]\na2 = [11, 11, 11, 22, 33]\nprint \"Array a1 begins at location\\t\" , hex(id(a1 ))\nprint \"Array a2 begins at location\\t\" , hex(id(a2)) \np = loc(a1, a2, 9, 5)\nif (p):\n    print \"Array a2 found at location\\t\" , hex(id(p))\n    for i in range(len(p)):\n        print \"\\t\" , hex(id(p[i])) , \": \" , p[i], \"\\t\" , hex(id(a2[i])) , \": \" , a2[i] \nelse:\n    print \"Not found.\"\n",
+     "input": [
+      "\n",
+      "\n",
+      "def loc(a1,a2,n1,n2):\n",
+      "    p = []\n",
+      "    for element in a2:\n",
+      "        if element in a1:\n",
+      "            p.append(element)\n",
+      "    return p\n",
+      "\n",
+      "a1 = [11, 11, 11, 11, 11, 22, 33, 44, 55]\n",
+      "a2 = [11, 11, 11, 22, 33]\n",
+      "print \"Array a1 begins at location\\t\" , hex(id(a1 ))\n",
+      "print \"Array a2 begins at location\\t\" , hex(id(a2)) \n",
+      "p = loc(a1, a2, 9, 5)\n",
+      "if (p):\n",
+      "    print \"Array a2 found at location\\t\" , hex(id(p))\n",
+      "    for i in range(len(p)):\n",
+      "        print \"\\t\" , hex(id(p[i])) , \": \" , p[i], \"\\t\" , hex(id(a2[i])) , \": \" , a2[i] \n",
+      "else:\n",
+      "    print \"Not found.\"\n"
+     ],
      "language": "python",
      "metadata": {},
      "outputs": [
       {
        "output_type": "stream",
        "stream": "stdout",
-       "text": "Array a1 begins at location\t0x9bea56c\nArray a2 begins at location\t0x9bea62c\nArray a2 found at location\t0x9bea6cc\n\t0x8fc1078 :  11 \t0x8fc1078 :  11\n\t0x8fc1078 :  11 \t0x8fc1078 :  11\n\t0x8fc1078 :  11 \t0x8fc1078 :  11\n\t0x8fc0ff4 :  22 \t0x8fc0ff4 :  22\n\t0x8fc0f70 :  33 \t0x8fc0f70 :  33\n"
+       "text": [
+        "Array a1 begins at location\t0x9bea56c\n",
+        "Array a2 begins at location\t0x9bea62c\n",
+        "Array a2 found at location\t0x9bea6cc\n",
+        "\t0x8fc1078 :  11 \t0x8fc1078 :  11\n",
+        "\t0x8fc1078 :  11 \t0x8fc1078 :  11\n",
+        "\t0x8fc1078 :  11 \t0x8fc1078 :  11\n",
+        "\t0x8fc0ff4 :  22 \t0x8fc0ff4 :  22\n",
+        "\t0x8fc0f70 :  33 \t0x8fc0f70 :  33\n"
+       ]
       }
      ],
      "prompt_number": 12
@@ -190,102 +399,161 @@
     {
      "cell_type": "code",
      "collapsed": false,
-     "input": "'''\nEXAMPLE 7.15 Using Dynamic Arrays\n'''\n\ndef get(a):\n    print \"Enter number of items: \"\n    n = int(raw_input())\n    print \"Enter \" , n , \" items, one per line:\"\n    for i in range(n):\n        print \"\\t\" , i+1 , \": \",\n        a.append(float(raw_input()))\n\ndef print_(a):\n    for i in range(len(a)):\n        print a[i] ,\n    print ''\n\na = []\nget(a)\nprint_(a)\na = []\nget(a)\nprint_(a)\n",
+     "input": [
+      "\n",
+      "\n",
+      "def get(a):\n",
+      "    print \"Enter number of items: \"\n",
+      "    n = int(raw_input())\n",
+      "    print \"Enter \" , n , \" items, one per line:\"\n",
+      "    for i in range(n):\n",
+      "        print \"\\t\" , i+1 , \": \",\n",
+      "        a.append(float(raw_input()))\n",
+      "\n",
+      "def print_(a):\n",
+      "    for i in range(len(a)):\n",
+      "        print a[i] ,\n",
+      "    print ''\n",
+      "\n",
+      "a = []\n",
+      "get(a)\n",
+      "print_(a)\n",
+      "a = []\n",
+      "get(a)\n",
+      "print_(a)\n"
+     ],
      "language": "python",
      "metadata": {},
      "outputs": [
       {
        "output_type": "stream",
        "stream": "stdout",
-       "text": "Enter number of items: \n"
+       "text": [
+        "Enter number of items: \n"
+       ]
       },
       {
        "name": "stdout",
        "output_type": "stream",
        "stream": "stdout",
-       "text": "4\n"
+       "text": [
+        "4\n"
+       ]
       },
       {
        "output_type": "stream",
        "stream": "stdout",
-       "text": "Enter  4  items, one per line:\n\t1 : "
+       "text": [
+        "Enter  4  items, one per line:\n",
+        "\t1 : "
+       ]
       },
       {
        "name": "stdout",
        "output_type": "stream",
        "stream": "stdout",
-       "text": "44.4\n"
+       "text": [
+        "44.4\n"
+       ]
       },
       {
        "output_type": "stream",
        "stream": "stdout",
-       "text": " \t2 : "
+       "text": [
+        " \t2 : "
+       ]
       },
       {
        "name": "stdout",
        "output_type": "stream",
        "stream": "stdout",
-       "text": "77.7\n"
+       "text": [
+        "77.7\n"
+       ]
       },
       {
        "output_type": "stream",
        "stream": "stdout",
-       "text": " \t3 : "
+       "text": [
+        " \t3 : "
+       ]
       },
       {
        "name": "stdout",
        "output_type": "stream",
        "stream": "stdout",
-       "text": "22.2\n"
+       "text": [
+        "22.2\n"
+       ]
       },
       {
        "output_type": "stream",
        "stream": "stdout",
-       "text": " \t4 : "
+       "text": [
+        " \t4 : "
+       ]
       },
       {
        "name": "stdout",
        "output_type": "stream",
        "stream": "stdout",
-       "text": "88.8\n"
+       "text": [
+        "88.8\n"
+       ]
       },
       {
        "output_type": "stream",
        "stream": "stdout",
-       "text": " 44.4 77.7 22.2 88.8 \nEnter number of items: \n"
+       "text": [
+        " 44.4 77.7 22.2 88.8 \n",
+        "Enter number of items: \n"
+       ]
       },
       {
        "name": "stdout",
        "output_type": "stream",
        "stream": "stdout",
-       "text": "2\n"
+       "text": [
+        "2\n"
+       ]
       },
       {
        "output_type": "stream",
        "stream": "stdout",
-       "text": "Enter  2  items, one per line:\n\t1 : "
+       "text": [
+        "Enter  2  items, one per line:\n",
+        "\t1 : "
+       ]
       },
       {
        "name": "stdout",
        "output_type": "stream",
        "stream": "stdout",
-       "text": "3.33\n"
+       "text": [
+        "3.33\n"
+       ]
       },
       {
        "output_type": "stream",
        "stream": "stdout",
-       "text": " \t2 : "
+       "text": [
+        " \t2 : "
+       ]
       },
       {
        "name": "stdout",
        "output_type": "stream",
        "stream": "stdout",
-       "text": "9.99\n"
+       "text": [
+        "9.99\n"
+       ]
       },
       {
        "output_type": "stream",
        "stream": "stdout",
-       "text": " 3.33 9.99 \n"
+       "text": [
+        " 3.33 9.99 \n"
+       ]
       }
      ],
      "prompt_number": 13
@@ -293,7 +561,15 @@
     {
      "cell_type": "code",
      "collapsed": false,
-     "input": "'''\nEXAMPLE 7.17 Indirect Bubble Sort\n'''\n\ndef sort(p, n):\n    for i in range(1,n):\n        for j in range(n-i):\n            if (p[j] > p[j+1]):\n                p[j],p[j+1] = p[j+1],p[j]\n",
+     "input": [
+      "\n",
+      "\n",
+      "def sort(p, n):\n",
+      "    for i in range(1,n):\n",
+      "        for j in range(n-i):\n",
+      "            if (p[j] > p[j+1]):\n",
+      "                p[j],p[j+1] = p[j+1],p[j]\n"
+     ],
      "language": "python",
      "metadata": {},
      "outputs": [],
@@ -302,14 +578,36 @@
     {
      "cell_type": "code",
      "collapsed": false,
-     "input": "'''\nEXAMPLE 7.18 The Sum of a Function\n'''\n\ndef sum_(k,n):\n    # returns the sum f(0) + f(1) + f(2) + . . . + f(n-1):\n    s = 0\n    for i in range(1,n+1):\n        s += k(i)\n    return s\n\ndef square(k):\n    return k*k\n\ndef cube(k):\n    return k*k*k\n\n\nprint sum_(square,4) # 1 + 4 + 9 + 16\nprint sum_(cube,4)  # 1 + 8 + 27 + 64\n\n",
+     "input": [
+      "\n",
+      "def sum_(k,n):\n",
+      "    # returns the sum f(0) + f(1) + f(2) + . . . + f(n-1):\n",
+      "    s = 0\n",
+      "    for i in range(1,n+1):\n",
+      "        s += k(i)\n",
+      "    return s\n",
+      "\n",
+      "def square(k):\n",
+      "    return k*k\n",
+      "\n",
+      "def cube(k):\n",
+      "    return k*k*k\n",
+      "\n",
+      "\n",
+      "print sum_(square,4) # 1 + 4 + 9 + 16\n",
+      "print sum_(cube,4)  # 1 + 8 + 27 + 64\n",
+      "\n"
+     ],
      "language": "python",
      "metadata": {},
      "outputs": [
       {
        "output_type": "stream",
        "stream": "stdout",
-       "text": "30\n100\n"
+       "text": [
+        "30\n",
+        "100\n"
+       ]
       }
      ],
      "prompt_number": 15
@@ -317,7 +615,7 @@
     {
      "cell_type": "code",
      "collapsed": false,
-     "input": "",
+     "input": [],
      "language": "python",
      "metadata": {},
      "outputs": []