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+{
+ "metadata": {
+ "name": ""
+ },
+ "nbformat": 3,
+ "nbformat_minor": 0,
+ "worksheets": [
+ {
+ "cells": [
+ {
+ "cell_type": "heading",
+ "level": 1,
+ "metadata": {},
+ "source": [
+ "Chapter 3: Selection"
+ ]
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 3.1, page no. 36"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "print \"Enter two positive integers: \";\n",
+ "n = int(raw_input())\n",
+ "d = int(raw_input())\n",
+ "if (n%d):\n",
+ " print \"%d is not divisible by %d\" %(n,d)"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Enter two positive integers: \n"
+ ]
+ },
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "66\n"
+ ]
+ },
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "7\n"
+ ]
+ },
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "66 is not divisible by 7\n"
+ ]
+ }
+ ],
+ "prompt_number": 1
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 3.2, page no. 37"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "print \"Enter two positive integers: \";\n",
+ "n = int(raw_input())\n",
+ "d = int(raw_input())\n",
+ "if (n%d):\n",
+ " print \"%d is not divisible by %d\" %(n,d)\n",
+ "else:\n",
+ " print \"%d is divisible by %d\" %(n,d)\n"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Enter two positive integers: \n"
+ ]
+ },
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "56\n"
+ ]
+ },
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "7\n"
+ ]
+ },
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "56 is divisible by 7\n"
+ ]
+ }
+ ],
+ "prompt_number": 2
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 3.3, page no. 38"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "print \"Enter two integers: \"\n",
+ "m = int(raw_input())\n",
+ "n = int(raw_input())\n",
+ "\n",
+ "if (m < n):\n",
+ " print \"%d is the minimum.\" %m\n",
+ "else:\n",
+ " print \"%d is the minimum.\" %n\n",
+ "\n"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Enter two integers: \n"
+ ]
+ },
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "77\n"
+ ]
+ },
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "55\n"
+ ]
+ },
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "55 is the minimum.\n"
+ ]
+ }
+ ],
+ "prompt_number": 3
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 3.4, page no. 38"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "print \"Enter an integer: \"\n",
+ "n = int(raw_input())\n",
+ "if (n == 22):\n",
+ " print \"%d = 22\" %n\n",
+ "else: \n",
+ " print \"%d != 22\" %n"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Enter an integer: \n"
+ ]
+ },
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "22\n"
+ ]
+ },
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "22 = 22\n"
+ ]
+ }
+ ],
+ "prompt_number": 1
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 3.5, page no. 39"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "print \"Enter three integers: \"\n",
+ "n1 = int(raw_input())\n",
+ "n2 = int(raw_input())\n",
+ "n3 = int(raw_input())\n",
+ "\n",
+ "m=n1\n",
+ "# now min <= n1\n",
+ "if (n2 < m):\n",
+ " m = n2 # now min <= n1 and min <= n2\n",
+ "if (n3 < m):\n",
+ " m = n3 # now min <= n1, min <= n2, and min <= n3\n",
+ "print \"Their minimum is %d\" % m"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Enter three integers: \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": [
+ "55\n"
+ ]
+ },
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Their minimum is 33\n"
+ ]
+ }
+ ],
+ "prompt_number": 5
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 3.6, page no. 39"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "print \"Enter two integers: \"\n",
+ "x = int(raw_input())\n",
+ "y = int(raw_input())\n",
+ "\n",
+ "if (x > y):\n",
+ " temp=x\n",
+ " x = y\n",
+ " y = temp\n",
+ " \n",
+ "\n",
+ "print \"%d <= %d\" %(x,y)"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Enter two integers: \n"
+ ]
+ },
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "66\n"
+ ]
+ },
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "44\n"
+ ]
+ },
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "44 <= 66\n"
+ ]
+ }
+ ],
+ "prompt_number": 6
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 3.7, page no. 40"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "n=44\n",
+ "print \"n = %d\" % n \n",
+ "if True:\n",
+ " # scope extends over 4 lines\n",
+ " print \"Enter an integer: \"\n",
+ " n = int(raw_input())\n",
+ " print \"n = %d\" % n \n",
+ "\n",
+ "if True:\n",
+ " print \"n = %d\" % n \n",
+ " # the n that was declared first\n",
+ "if True:\n",
+ " print \"n = %d\" % n \n",
+ "\n",
+ "print \"n = %d\" % n "
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "n = 44\n",
+ "Enter an integer: \n"
+ ]
+ },
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "77\n"
+ ]
+ },
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "n = 77\n",
+ "n = 77\n",
+ "n = 77\n",
+ "n = 77\n"
+ ]
+ }
+ ],
+ "prompt_number": 7
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 3.8, page no. 41"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "print \"Enter three integers: \"\n",
+ "n1 = int(raw_input())\n",
+ "n2 = int(raw_input())\n",
+ "n3 = int(raw_input())\n",
+ "if (n1 <= n2 and n1 <= n3):\n",
+ " print \"Their minimum is %d\" % n1\n",
+ " \n",
+ "if (n2 <= n1 and n2 <= n3):\n",
+ " print \"Their minimum is %d \" % n2 \n",
+ "if (n3 <= n1 and n3 <= n2):\n",
+ " print \"Their minimum is %d\" % n3 \n"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Enter three integers: \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": [
+ "55\n"
+ ]
+ },
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Their minimum is 33 \n"
+ ]
+ }
+ ],
+ "prompt_number": 8
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 3.9, page no. 41"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "print \"Are you enrolled (y/n): \"\n",
+ "ans = raw_input()\n",
+ "if (ans == 'Y' or ans == 'y'):\n",
+ " print \"You are enrolled.\\n\"\n",
+ "else: \n",
+ " print \"You are not enrolled.\\n\"\n"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Are you enrolled (y/n): \n"
+ ]
+ },
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "y\n"
+ ]
+ },
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "You are enrolled.\n",
+ "\n"
+ ]
+ }
+ ],
+ "prompt_number": 9
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 3.10, page no. 42"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "\n",
+ "\n",
+ "print \"Enter two positive integers: \";\n",
+ "n = int(raw_input())\n",
+ "d = int(raw_input())\n",
+ "\n",
+ "if (d != 0 and n%d == 0): \n",
+ " print \"%d divides %d\" %(d,n)\n",
+ "else:\n",
+ " print \"%d does not divide %d\"% (d,n)"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Enter two positive integers: \n"
+ ]
+ },
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "33\n"
+ ]
+ },
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "6\n"
+ ]
+ },
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "6 does not divide 33\n"
+ ]
+ }
+ ],
+ "prompt_number": 10
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 3.11, page no. 43"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "print \"Enter three integers: \"\n",
+ "n1 = int(raw_input())\n",
+ "n2 = int(raw_input())\n",
+ "n3 = int(raw_input())\n",
+ "\n",
+ "if (n1 >= n2 >= n3):\n",
+ " print \"max = x\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Enter three integers: \n"
+ ]
+ },
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "0\n"
+ ]
+ },
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "0\n"
+ ]
+ },
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "1\n"
+ ]
+ }
+ ],
+ "prompt_number": 11
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 3.12, page no. 43"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "print \"Enter two positive integers: \"\n",
+ "n = int(raw_input())\n",
+ "d = int(raw_input())\n",
+ "\n",
+ "if (d != 0):\n",
+ " if (n%d == 0):\n",
+ " print d,\n",
+ " print \" divides %d\" % n \n",
+ " else:\n",
+ " print \"%d does not divide %d\" %(d,n)\n",
+ "else:\n",
+ " print '%d does not divide %d '%(d,n)"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Enter two positive integers: \n"
+ ]
+ },
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "55\n"
+ ]
+ },
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "44\n"
+ ]
+ },
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "44 does not divide 55\n"
+ ]
+ }
+ ],
+ "prompt_number": 12
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 3.13, page no. 44"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "print \"Enter three integers: \"\n",
+ "n1 = int(raw_input())\n",
+ "n2 = int(raw_input())\n",
+ "n3 = int(raw_input())\n",
+ "if (n1 < n2):\n",
+ " if (n1 < n3):\n",
+ " print \"Their minimum is : %d\" % n1\n",
+ " else:\n",
+ " print \"Their minimum is : %d\" % n3\n",
+ "else: # n1 >= n2\n",
+ " if (n2 < n3):\n",
+ " print \"Their minimum is : %d\" % n2\n",
+ " else:\n",
+ " print \"Their minimum is %d\" % n3"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Enter three integers: \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": [
+ "55\n"
+ ]
+ },
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Their minimum is : 33\n"
+ ]
+ }
+ ],
+ "prompt_number": 13
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 3.14, page no. 44"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "print \"Pick a number from 1 to 8.\" \n",
+ "answer = int(raw_input())\n",
+ "print \"Is it less than 5? (y|n): \"\n",
+ "answer = raw_input()\n",
+ "if (answer == 'y'): # 1 <= n <= 4\n",
+ " print \"Is it less than 3? (y|n): \"\n",
+ " answer = raw_input() \n",
+ " if (answer == 'y'): # 1 <= n <= 2\n",
+ " print \"Is it less than 2? (y|n): \"\n",
+ " answer = raw_input()\n",
+ " if (answer == 'y'):\n",
+ " print \"Your number is 1.\"\n",
+ " else:\n",
+ " print \"Your number is 2.\"\n",
+ " else: # 3 <= n <= 4\n",
+ " print \"Is it less than 4? (y|n): \"\n",
+ " answer = raw_input()\n",
+ " if (answer == 'y'):\n",
+ " print \"Your number is 3.\"\n",
+ " else:\n",
+ " print \"Your number is 4.\"\n",
+ "else: # 5 <= n <= 8\n",
+ " print \"Is it less than 7? (y|n): \"\n",
+ " answer = raw_input()\n",
+ " if (answer == 'y'): # 5 <= n <= 6\n",
+ " print \"Is it less than 6? (y|n): \"\n",
+ " answer = raw_input()\n",
+ " if (answer == 'y'):\n",
+ " print \"Your number is 5.\"\n",
+ " else:\n",
+ " print \"Your number is 6.\" \n",
+ " else: # 7 <= n <= 8\n",
+ " print \"Is it less than 8? (y|n): \"\n",
+ " answer = raw_input()\n",
+ " if (answer == 'y'):\n",
+ " print \"Your number is 7.\" \n",
+ " else:\n",
+ " print \"Your number is 8.\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Pick a number from 1 to 8.\n"
+ ]
+ },
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "6\n"
+ ]
+ },
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Is it less than 5? (y|n): \n"
+ ]
+ },
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "n\n"
+ ]
+ },
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Is it less than 7? (y|n): \n"
+ ]
+ },
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "y\n"
+ ]
+ },
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Is it less than 6? (y|n): \n"
+ ]
+ },
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "n\n"
+ ]
+ },
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Your number is 6.\n"
+ ]
+ }
+ ],
+ "prompt_number": 14
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 3.15, page no. 46"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "language = raw_input(\"Engl., Fren., Ger., Ital., or Rus.? (e|f|g|i|r): \")\n",
+ "\n",
+ "if (language == 'e'): \n",
+ " print \"Welcome to ProjectEuclid.\"\n",
+ "elif (language == 'f'):\n",
+ " print \"Bon jour, ProjectEuclid.\"\n",
+ "elif (language == 'g'):\n",
+ " print \"Guten tag, ProjectEuclid.\"\n",
+ "elif (language == 'i'):\n",
+ " print \"Bon giorno, ProjectEuclid.\"\n",
+ "elif (language == 'r'):\n",
+ " print \"Dobre utre, ProjectEuclid.\"\n",
+ "else:\n",
+ " print \"Sorry; we don't speak your language.\"\n"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Engl., Fren., Ger., Ital., or Rus.? (e|f|g|i|r): i\n"
+ ]
+ },
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Bon giorno, ProjectEuclid.\n"
+ ]
+ }
+ ],
+ "prompt_number": 15
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 3.16, page no. 47"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "\n",
+ "score = int(raw_input(\"Enter your test score: \"))\n",
+ "a = int(score/10)\n",
+ "if a == 10 or a == 9:\n",
+ " print \"Your grade is an A.\"\n",
+ "elif a == 8:\n",
+ " print \"Your grade is a B.\" \n",
+ "elif a == 7:\n",
+ " print \"Your grade is a C.\" \n",
+ "elif a == 6:\n",
+ " print \"Your grade is a D.\"\n",
+ "elif a==5 or a==4 or a==3 or a==2 or a==1 or a==0:\n",
+ " print \"Your grade is an F.\" \n",
+ "else:\n",
+ " print \"Error: score is out of range.\\n\"\n"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Enter your test score: 83\n"
+ ]
+ },
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Your grade is a B.\n"
+ ]
+ }
+ ],
+ "prompt_number": 16
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 3.17, page no. 47"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "score = int(raw_input(\"Enter your test score: \"))\n",
+ "a = int(score/10)\n",
+ "if a == 10 or a == 9:\n",
+ " print \"Your grade is an A.\"\n",
+ "elif a == 8:\n",
+ " print \"Your grade is a B.\" \n",
+ "elif a == 7:\n",
+ " print \"Your grade is a C.\" \n",
+ "elif a == 6:\n",
+ " print \"Your grade is a D.\"\n",
+ "elif a==5 or a==4 or a==3 or a==2 or a==1 or a==0:\n",
+ " print \"Your grade is an F.\" \n",
+ "else:\n",
+ " print \"Error: score is out of range.\\n\"\n",
+ "\n",
+ "print \"Goodbye.\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Enter your test score: 83\n"
+ ]
+ },
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Your grade is a B.\n",
+ "Goodbye.\n"
+ ]
+ }
+ ],
+ "prompt_number": 17
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 3.18, page no. 48"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "score = int(raw_input(\"Enter your test score: \"))\n",
+ "a = int(score/10)\n",
+ "if a == 10 or a == 9:\n",
+ " print \"Your grade is an A.\"\n",
+ "elif a == 8:\n",
+ " print \"Your grade is a B.\" \n",
+ "elif a == 7:\n",
+ " print \"Your grade is a C.\" \n",
+ "elif a == 6:\n",
+ " print \"Your grade is a D.\"\n",
+ "elif a==5 or a==4 or a==3 or a==2 or a==1 or a==0:\n",
+ " print \"Your grade is an F.\" \n",
+ "else:\n",
+ " print \"Error: score is out of range.\\n\"\n",
+ "\n",
+ "print \"Goodbye.\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Enter your test score: 83\n"
+ ]
+ },
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Your grade is a B.\n",
+ "Goodbye.\n"
+ ]
+ }
+ ],
+ "prompt_number": 18
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 3.19, page no. 49"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "print \"Enter two integers: \"\n",
+ "m = int(raw_input())\n",
+ "n = int(raw_input())\n",
+ "print min(m,n),\n",
+ "print 'is the minimum'"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Enter two integers: \n"
+ ]
+ },
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "33\n"
+ ]
+ },
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "55\n"
+ ]
+ },
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "33 is the minimum\n"
+ ]
+ }
+ ],
+ "prompt_number": 19
+ }
+ ],
+ "metadata": {}
+ }
+ ]
+} \ No newline at end of file
generated by cgit (git 2.34.1) at 2025-04-01 04:07:59 +0000