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diff --git a/Schaum's_Outlines:_Programming_with_C++/ch6.ipynb b/Schaum's_Outlines:_Programming_with_C++/ch6.ipynb new file mode 100644 index 00000000..bca2c6e0 --- /dev/null +++ b/Schaum's_Outlines:_Programming_with_C++/ch6.ipynb @@ -0,0 +1,1264 @@ +{ + "metadata": { + "name": "" + }, + "nbformat": 3, + "nbformat_minor": 0, + "worksheets": [ + { + "cells": [ + { + "cell_type": "heading", + "level": 1, + "metadata": {}, + "source": [ + "Chapter 6: Arrays" + ] + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 6.1, page no. 126" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "a = [0, 0, 0]\n", + "a[2] = 55.55\n", + "a[0] = 11.11\n", + "a[1] = 33.33\n", + "print \"a[0] = \" , a[0] \n", + "print \"a[1] = \" , a[1] \n", + "print \"a[2] = \" , a[2] \n" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "a[0] = 11.11\n", + "a[1] = 33.33\n", + "a[2] = 55.55\n" + ] + } + ], + "prompt_number": 1 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 6.2, page no. 127" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "SIZE=5 # defines the size N for 5 elements\n", + "a = []\n", + "# declares the array's elements as type double\n", + "print \"Enter \" , SIZE , \" numbers:\\t\"\n", + "for i in range(SIZE):\n", + " a.append(float(raw_input()))\n", + " \n", + "print \"In reverse order: \"\n", + "for i in range(SIZE-1,-1,-1):\n", + " print \"\\t\" , a[i]\n", + "\n" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "Enter 5 numbers:\t\n" + ] + }, + { + "name": "stdout", + "output_type": "stream", + "stream": "stdout", + "text": [ + "11.11\n" + ] + }, + { + "name": "stdout", + "output_type": "stream", + "stream": "stdout", + "text": [ + "33.33\n" + ] + }, + { + "name": "stdout", + "output_type": "stream", + "stream": "stdout", + "text": [ + "55.55\n" + ] + }, + { + "name": "stdout", + "output_type": "stream", + "stream": "stdout", + "text": [ + "77.77\n" + ] + }, + { + "name": "stdout", + "output_type": "stream", + "stream": "stdout", + "text": [ + "99.99\n" + ] + }, + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "In reverse order: \n", + "\t99.99\n", + "\t77.77\n", + "\t55.55\n", + "\t33.33\n", + "\t11.11\n" + ] + } + ], + "prompt_number": 1 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 6.3, page no. 128" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "a = [ 22.2, 44.4, 66.6 ]\n", + "\n", + "size = len(a)\n", + "for i in range(size):\n", + " print \"\\ta[\" , i , \"] = \" , a[i]\n", + "\n" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "\ta[ 0 ] = 22.2\n", + "\ta[ 1 ] = 44.4\n", + "\ta[ 2 ] = 66.6\n" + ] + } + ], + "prompt_number": 3 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 6.4, page no. 128" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "a = [ 22.2, 44.4, 66.6 , 0 ,0,0,0]\n", + "size = len(a)\n", + "for i in range(size):\n", + " print \"\\ta[\" , i , \"] = \" , a[i] \n" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "\ta[ 0 ] = 22.2\n", + "\ta[ 1 ] = 44.4\n", + "\ta[ 2 ] = 66.6\n", + "\ta[ 3 ] = 0\n", + "\ta[ 4 ] = 0\n", + "\ta[ 5 ] = 0\n", + "\ta[ 6 ] = 0\n" + ] + } + ], + "prompt_number": 4 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 6.5, page no. 129" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "import numpy\n", + "SIZE = 4\n", + "a = numpy.zeros(4)\n", + "# declares the array's elements as type float\n", + "for i in range(SIZE):\n", + " print \"\\ta[\" , i , \"] = \" , a[i]\n" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "\ta[ 0 ] = 0.0\n", + "\ta[ 1 ] = 0.0\n", + "\ta[ 2 ] = 0.0\n", + "\ta[ 3 ] = 0.0\n" + ] + } + ], + "prompt_number": 5 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 6.6, page no. 129" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "SIZE=4\n", + "a = [ 33.3, 44.4, 55.5, 66.6 ]\n", + "for i in range(7): # ERROR: index is out of bounds!\n", + " print \"\\ta[\" , i , \"] = \" , a[i] \n", + "\n" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "ename": "IndexError", + "evalue": "list index out of range", + "output_type": "pyerr", + "traceback": [ + "\u001b[1;31m---------------------------------------------------------------------------\u001b[0m\n\u001b[1;31mIndexError\u001b[0m Traceback (most recent call last)", + "\u001b[1;32m<ipython-input-1-b39022f1d3ab>\u001b[0m in \u001b[0;36m<module>\u001b[1;34m()\u001b[0m\n\u001b[0;32m 2\u001b[0m \u001b[0ma\u001b[0m \u001b[1;33m=\u001b[0m \u001b[1;33m[\u001b[0m \u001b[1;36m33.3\u001b[0m\u001b[1;33m,\u001b[0m \u001b[1;36m44.4\u001b[0m\u001b[1;33m,\u001b[0m \u001b[1;36m55.5\u001b[0m\u001b[1;33m,\u001b[0m \u001b[1;36m66.6\u001b[0m \u001b[1;33m]\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n\u001b[0;32m 3\u001b[0m \u001b[1;32mfor\u001b[0m \u001b[0mi\u001b[0m \u001b[1;32min\u001b[0m \u001b[0mrange\u001b[0m\u001b[1;33m(\u001b[0m\u001b[1;36m7\u001b[0m\u001b[1;33m)\u001b[0m\u001b[1;33m:\u001b[0m \u001b[1;31m# ERROR: index is out of bounds!\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n\u001b[1;32m----> 4\u001b[1;33m \u001b[1;32mprint\u001b[0m \u001b[1;34m\"\\ta[\"\u001b[0m \u001b[1;33m,\u001b[0m \u001b[0mi\u001b[0m \u001b[1;33m,\u001b[0m \u001b[1;34m\"] = \"\u001b[0m \u001b[1;33m,\u001b[0m \u001b[0ma\u001b[0m\u001b[1;33m[\u001b[0m\u001b[0mi\u001b[0m\u001b[1;33m]\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n\u001b[0m\u001b[0;32m 5\u001b[0m \u001b[1;33m\u001b[0m\u001b[0m\n", + "\u001b[1;31mIndexError\u001b[0m: list index out of range" + ] + }, + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "\ta[ 0 ] = 33.3\n", + "\ta[ 1 ] = 44.4\n", + "\ta[ 2 ] = 55.5\n", + "\ta[ 3 ] = 66.6\n", + "\ta[ 4 ] = " + ] + } + ], + "prompt_number": 1 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 6.7, page no. 130" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "a = [ 22.2, 44.4, 66.6 ]\n", + "x=11.1\n", + "print \"x = \" , x \n", + "a.append(88.8) # ERROR: index is out of bounds!\n", + "print \"x = \" , x \n" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + " x = 11.1\n", + "x = 11.1\n" + ] + } + ], + "prompt_number": 7 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 6.8, page no. 130" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "a = [ 22.2, 44.4, 66.6 ]\n", + "x=11.1\n", + "print \"x = \" , x \n", + "a[3333] = 88.8 # ERROR: index is out of bounds!\n", + "print \"x = \" , x \n" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "ename": "IndexError", + "evalue": "list assignment index out of range", + "output_type": "pyerr", + "traceback": [ + "\u001b[1;31m---------------------------------------------------------------------------\u001b[0m\n\u001b[1;31mIndexError\u001b[0m Traceback (most recent call last)", + "\u001b[1;32m<ipython-input-8-63b6c8e60294>\u001b[0m in \u001b[0;36m<module>\u001b[1;34m()\u001b[0m\n\u001b[0;32m 6\u001b[0m \u001b[0mx\u001b[0m\u001b[1;33m=\u001b[0m\u001b[1;36m11.1\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n\u001b[0;32m 7\u001b[0m \u001b[1;32mprint\u001b[0m \u001b[1;34m\"x = \"\u001b[0m \u001b[1;33m,\u001b[0m \u001b[0mx\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n\u001b[1;32m----> 8\u001b[1;33m \u001b[0ma\u001b[0m\u001b[1;33m[\u001b[0m\u001b[1;36m3333\u001b[0m\u001b[1;33m]\u001b[0m \u001b[1;33m=\u001b[0m \u001b[1;36m88.8\u001b[0m \u001b[1;31m# ERROR: index is out of bounds!\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n\u001b[0m\u001b[0;32m 9\u001b[0m \u001b[1;32mprint\u001b[0m \u001b[1;34m\"x = \"\u001b[0m \u001b[1;33m,\u001b[0m \u001b[0mx\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n", + "\u001b[1;31mIndexError\u001b[0m: list assignment index out of range" + ] + }, + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "x = 11.1\n" + ] + } + ], + "prompt_number": 8 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 6.9, page no. 131" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "def sum_(a):\n", + " s = 0\n", + " for i in a:\n", + " s += i\n", + " return s\n", + " \n", + "a = [ 11, 33, 55, 77 ]\n", + "print \"sum(a) = \" , sum_(a) \n" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "sum(a) = 176\n" + ] + } + ], + "prompt_number": 10 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 6.10, page no. 132" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "def read(a):\n", + " print \"Enter integers. Terminate with 0:\\n\"\n", + " n = 1\n", + " while True:\n", + " n = int(raw_input(\"a[\" + str(len(a)) + \"]: \"))\n", + " if n == 0:\n", + " break\n", + " a.append(n)\n", + " \n", + "\n", + "def print_(a):\n", + " for i in a:\n", + " print i ,\n", + "\n", + "\n", + "a = []\n", + "read(a)\n", + "print \"The array has \" , len(a) , \" elements: \"\n", + "print_(a)\n" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "Enter integers. Terminate with 0:\n", + "\n" + ] + }, + { + "name": "stdout", + "output_type": "stream", + "stream": "stdout", + "text": [ + "a[0]: 11\n" + ] + }, + { + "name": "stdout", + "output_type": "stream", + "stream": "stdout", + "text": [ + "a[1]: 22\n" + ] + }, + { + "name": "stdout", + "output_type": "stream", + "stream": "stdout", + "text": [ + "a[2]: 33\n" + ] + }, + { + "name": "stdout", + "output_type": "stream", + "stream": "stdout", + "text": [ + "a[3]: 44\n" + ] + }, + { + "name": "stdout", + "output_type": "stream", + "stream": "stdout", + "text": [ + "a[4]: 0\n" + ] + }, + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "The array has 4 elements: \n", + "11 22 33 44\n" + ] + } + ], + "prompt_number": 12 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 6.11, page no. 133" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "import sys\n", + "a = [ 22, 44, 66, 88 ]\n", + "print \"a = \" , id(a) # the address of a[0]\n", + "\n" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "a = 169156908\n" + ] + } + ], + "prompt_number": 13 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 6.12, page no. 133" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "def index(x,a,n):\n", + " for i in range(len(a)):\n", + " if (a[i] == x):\n", + " return i\n", + " return n # x not found\n", + "\n", + "a = [ 22, 44, 66, 88, 44, 66, 55 ]\n", + "print \"index(44,a,7) = \" , index(44,a,7)\n", + "print \"index(50,a,7) = \" , index(50,a,7) \n", + "\n", + "\n" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "index(44,a,7) = 1\n", + "index(50,a,7) = 7\n" + ] + } + ], + "prompt_number": 14 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 6.13, page no. 134" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "def sort(a,n):\n", + " # bubble sort:\n", + " n = len(a)\n", + " for i in range(n):\n", + " # bubble up max{a[0..n-i]}:\n", + " for j in range(n-i-1):\n", + " if (a[j] > a[j+1]):\n", + " a[j],a[j+1] = a[j+1],a[j]\n", + "\n", + "def print_(a):\n", + " for i in range(len(a)):\n", + " print a[i],\n", + " print ''\n", + " \n", + "a = [55.5, 22.5, 99.9, 66.6, 44.4, 88.8, 33.3, 77.7]\n", + "\n", + "print_(a)\n", + "sort(a,8)\n", + "print_(a)\n" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "55.5 22.5 99.9 66.6 44.4 88.8 33.3 77.7 \n", + "22.5 33.3 44.4 55.5 66.6 77.7 88.8 99.9 \n" + ] + } + ], + "prompt_number": 15 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 6.14, page no. 135" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "def index(x,a,n):\n", + " # PRECONDITION: a[0] <= a[1] <= ... <= a[n-1];\n", + " # binary search:\n", + " lo=0\n", + " hi=n-1\n", + " while (lo <= hi):\n", + " i = (lo + hi)/2 # the average of lo and hi\n", + " if (a[i] == x):\n", + " return i\n", + " if (a[i] < x):\n", + " lo = i+1 # continue search in a[i+1..hi]\n", + " else:\n", + " hi = i-1 # continue search in a[lo..i-1]\n", + " return n # x was not found in a[0..n-1]\n", + "\n", + "a = [ 22, 33, 44, 55, 66, 77, 88 ]\n", + "print \"index(44,a,7) = \" , index(44,a,7)\n", + "print \"index(60,a,7) = \" , index(60,a,7) \n", + "\n" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "index(44,a,7) = 2\n", + "index(60,a,7) = 7\n" + ] + } + ], + "prompt_number": 16 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 6.15, page no. 136" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "def isNondecreasing(a,n):\n", + " # returns true iff a[0] <= a[1] <= ... <= a[n-1]:\n", + " for i in range(1,n):\n", + " if (a[i]<a[i-1]):\n", + " return False\n", + " return True\n", + "\n", + "a = [ 22, 44, 66, 88, 44, 66, 55 ]\n", + "print \"isNondecreasing(a,4) = \" , isNondecreasing(a,4)\n", + "print \"isNondecreasing(a,7) = \" , isNondecreasing(a,7)\n" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "isNondecreasing(a,4) = True\n", + "isNondecreasing(a,7) = False\n" + ] + } + ], + "prompt_number": 17 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 6.16, page no. 137" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "def isNondecreasing(a,n):\n", + " # returns true iff a[0] <= a[1] <= ... <= a[n-1]:\n", + " for i in range(1,n):\n", + " if (a[i]<a[i-1]):\n", + " return False\n", + " return True\n", + "\n", + "\n", + "def index(x,a,n):\n", + " # PRECONDITION: a[0] <= a[1] <= ... <= a[n-1];\n", + " # binary search:\n", + " assert(isNondecreasing(a,n)) \n", + " \n", + " lo=0\n", + " hi=n-1\n", + " while (lo <= hi):\n", + " i = (lo + hi)/2\n", + " if (a[i] == x):\n", + " return i\n", + " if (a[i] < x):\n", + " lo = i+1 # continue search in a[i+1..hi]\n", + " else:\n", + " hi = i-1 # continue search in a[lo..i-1]\n", + " return n # x was not found in a[0..n-1]\n", + "\n", + "a = [ 22, 33, 44, 55, 66, 77, 88, 60 ]\n", + "print \"index(44,a,7) = \" , index(44,a,7) \n", + "print \"index(60,a,7) = \" , index(60,a,7)\n" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + " index(44,a,7) = 2\n", + "index(60,a,8) = 7\n" + ] + } + ], + "prompt_number": 5 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 6.17, page no. 137" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "Day = [ 0, 1, 2, 3, 4, 5, 6 ]\n", + "high = [ 88.3, 95.0, 91.2, 89.9, 91.4, 92.5, 86.7]\n", + "\n", + "for i in Day:\n", + " print \"The high temperature for day \" , i , \" was \" , high[i] \n", + "\n" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + " The high temperature for day 0 was 88.3\n", + "The high temperature for day 1 was 95.0\n", + "The high temperature for day 2 was 91.2\n", + "The high temperature for day 3 was 89.9\n", + "The high temperature for day 4 was 91.4\n", + "The high temperature for day 5 was 92.5\n", + "The high temperature for day 6 was 86.7\n" + ] + } + ], + "prompt_number": 19 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 6.18, page no. 139" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "def sort(a,n):\n", + " a.sort()\n", + "\n", + "def print_(a,n):\n", + " for i in a:\n", + " print i,\n", + " print ''\n", + "a = [55.5, 22.5, 99.9, 66.6, 44.4, 88.8, 33.3, 77.7]\n", + "print_(a,8);\n", + "sort(a,8)\n", + "print_(a,8)\n" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "55.5 22.5 99.9 66.6 44.4 88.8 33.3 77.7 \n", + "22.5 33.3 44.4 55.5 66.6 77.7 88.8 99.9 \n" + ] + } + ], + "prompt_number": 20 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 6.19, page no. 139" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "def read(a):\n", + " print \"Enter 15 integers, 5 per row:\\n\"\n", + " for i in range(3):\n", + " ar = []\n", + " print \"Row \" , i , \": \",\n", + " for j in range(5):\n", + " ar.append(int(raw_input()))\n", + " a.append(ar)\n", + "\n", + "def print_(a):\n", + " for i in range(3):\n", + " for j in range(5):\n", + " print a[i][j],\n", + " print ''\n", + "a = []\n", + "read(a)\n", + "print_(a)\n" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "Enter 15 integers, 5 per row:\n", + "\n", + "Row 0 : " + ] + }, + { + "name": "stdout", + "output_type": "stream", + "stream": "stdout", + "text": [ + "44\n" + ] + }, + { + "name": "stdout", + "output_type": "stream", + "stream": "stdout", + "text": [ + "77\n" + ] + }, + { + "name": "stdout", + "output_type": "stream", + "stream": "stdout", + "text": [ + "33\n" + ] + }, + { + "name": "stdout", + "output_type": "stream", + "stream": "stdout", + "text": [ + "11\n" + ] + }, + { + "name": "stdout", + "output_type": "stream", + "stream": "stdout", + "text": [ + "44\n" + ] + }, + { + "output_type": "stream", + "stream": "stdout", + "text": [ + " Row 1 : " + ] + }, + { + "name": "stdout", + "output_type": "stream", + "stream": "stdout", + "text": [ + "60\n" + ] + }, + { + "name": "stdout", + "output_type": "stream", + "stream": "stdout", + "text": [ + "50\n" + ] + }, + { + "name": "stdout", + "output_type": "stream", + "stream": "stdout", + "text": [ + "30\n" + ] + }, + { + "name": "stdout", + "output_type": "stream", + "stream": "stdout", + "text": [ + "90\n" + ] + }, + { + "name": "stdout", + "output_type": "stream", + "stream": "stdout", + "text": [ + "70\n" + ] + }, + { + "output_type": "stream", + "stream": "stdout", + "text": [ + " Row 2 : " + ] + }, + { + "name": "stdout", + "output_type": "stream", + "stream": "stdout", + "text": [ + "85\n" + ] + }, + { + "name": "stdout", + "output_type": "stream", + "stream": "stdout", + "text": [ + "25\n" + ] + }, + { + "name": "stdout", + "output_type": "stream", + "stream": "stdout", + "text": [ + "45\n" + ] + }, + { + "name": "stdout", + "output_type": "stream", + "stream": "stdout", + "text": [ + "45\n" + ] + }, + { + "name": "stdout", + "output_type": "stream", + "stream": "stdout", + "text": [ + "55\n" + ] + }, + { + "output_type": "stream", + "stream": "stdout", + "text": [ + " 44 77 33 11 44 \n", + "60 50 30 90 70 \n", + "85 25 45 45 55 \n" + ] + } + ], + "prompt_number": 21 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 6.20, page no. 140" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "def read(score):\n", + " for s in range(3):\n", + " print \"Student \" , s , \": \",\n", + " st = []\n", + " for q in range(5):\n", + " st.append(int(raw_input()))\n", + " score.append(st)\n", + "\n", + "def printQuizAverages(score):\n", + " for s in range(3):\n", + " sm = 0\n", + " for q in range(5):\n", + " sm += score[s][q]\n", + " print \"\\tStudent \" , s , \": \" , sm/5.0\n", + "\n", + "def printClassAverages(score):\n", + " for q in range(5):\n", + " sm = 0\n", + " for s in range(3):\n", + " sm += score[s][q]\n", + " print \"\\tQuiz \" , q , \": \" , sm/3.0\n", + "\n", + "\n", + "\n", + "NUM_STUDENTS = 3\n", + "NUM_QUIZZES = 5\n", + "\n", + "\n", + "score = []\n", + "print \"Enter \" , NUM_QUIZZES , \" scores for each student: \"\n", + "read(score)\n", + "print \"The quiz averages are:\"\n", + "printQuizAverages(score)\n", + "print \"The class averages are: \"\n", + "printClassAverages(score)\n" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "Enter 5 scores for each student: \n", + "Student 0 : " + ] + }, + { + "name": "stdout", + "output_type": "stream", + "stream": "stdout", + "text": [ + "8\n" + ] + }, + { + "name": "stdout", + "output_type": "stream", + "stream": "stdout", + "text": [ + "7\n" + ] + }, + { + "name": "stdout", + "output_type": "stream", + "stream": "stdout", + "text": [ + "9\n" + ] + }, + { + "name": "stdout", + "output_type": "stream", + "stream": "stdout", + "text": [ + "8\n" + ] + }, + { + "name": "stdout", + "output_type": "stream", + "stream": "stdout", + "text": [ + "9\n" + ] + }, + { + "output_type": "stream", + "stream": "stdout", + "text": [ + " Student 1 : " + ] + }, + { + "name": "stdout", + "output_type": "stream", + "stream": "stdout", + "text": [ + "9\n" + ] + }, + { + "name": "stdout", + "output_type": "stream", + "stream": "stdout", + "text": [ + "9\n" + ] + }, + { + "name": "stdout", + "output_type": "stream", + "stream": "stdout", + "text": [ + "9\n" + ] + }, + { + "name": "stdout", + "output_type": "stream", + "stream": "stdout", + "text": [ + "9\n" + ] + }, + { + "name": "stdout", + "output_type": "stream", + "stream": "stdout", + "text": [ + "8\n" + ] + }, + { + "output_type": "stream", + "stream": "stdout", + "text": [ + " Student 2 : " + ] + }, + { + "name": "stdout", + "output_type": "stream", + "stream": "stdout", + "text": [ + "5\n" + ] + }, + { + "name": "stdout", + "output_type": "stream", + "stream": "stdout", + "text": [ + "6\n" + ] + }, + { + "name": "stdout", + "output_type": "stream", + "stream": "stdout", + "text": [ + "7\n" + ] + }, + { + "name": "stdout", + "output_type": "stream", + "stream": "stdout", + "text": [ + "8\n" + ] + }, + { + "name": "stdout", + "output_type": "stream", + "stream": "stdout", + "text": [ + "9\n" + ] + }, + { + "output_type": "stream", + "stream": "stdout", + "text": [ + " The quiz averages are:\n", + "\tStudent 0 : 8.2\n", + "\tStudent 1 : 8.8\n", + "\tStudent 2 : 7.0\n", + "The class averages are: \n", + "\tQuiz 0 : 7.33333333333\n", + "\tQuiz 1 : 7.33333333333\n", + "\tQuiz 2 : 8.33333333333\n", + "\tQuiz 3 : 8.33333333333\n", + "\tQuiz 4 : 8.66666666667\n" + ] + } + ], + "prompt_number": 24 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 6.21, page no. 141" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "def numZeros(a,n1,n2,n3):\n", + " count = 0\n", + " for i in range(n1):\n", + " for j in range(n2):\n", + " for k in range(n3):\n", + " if (a[i][j][k] == 0):\n", + " count += 1\n", + " return count\n", + "\n", + "\n", + "a = [ [ [5,0,2], [0,0,9], [4,1,0], [7,7,7] ],[ [3,0,0], [8,5,0], [0,0,0], [2,0,9] ]]\n", + "print \"This array has \" , numZeros(a,2,4,3) , \" zeros\"\n", + "\n" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "This array has 11 zeros\n" + ] + } + ], + "prompt_number": 25 + } + ], + "metadata": {} + } + ] +}
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