Python Programming: An Introduction to Computer Science, 3rd Ed.
Python Programming: An Introduction to Computer Science, 3rd Ed.
3rd Edition
ISBN: 9781590282755
Author: John Zelle
Publisher: Franklin, Beedle & Associates
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Chapter 9, Problem 13PE
Program Plan Intro

Random walk

Program Plan:

  • Import the header file.
  • Define the main method.
    • Call the “printIntro ()” method.
    • Get the input from the user.
    • Call the “avgTravel ()” method and store it in a variable.
    • Display the result by calling “printSummary ()” method.
  • Define the “printIntro ()” method.
    • Display the messages.
  • Define the “avgTravel ()” method.
    • Set the values
    • Iterate “i” till it reaches 1000
      • Call the “simNSteps ()” method
      • Calculate the “totBlocks”
        • Check “totBlocks” is equal to 0
          • Set the value
        • Otherwise, calculate the “avgDist”
        • Return the result.
  • Define “simNBlocks ()” method
    • Set the values
    • Iterate “i” till it reaches “n”
      • Calculate “x” value
        • Check “x” is greater than or equal to 0 and less than 1
          • Increment the “blockX” value
        • Check “x” is greater than or equal to 1 and less than 2
          • Decrement the “blockX” value.
        • Check “x” is greater than or equal to 2 and less than 3
          • Increment the “blockY” value
        • Otherwise, decrement the “blockY” value.
        • Return the result.
  • Define “printSummary ()” method
    • Display the result.
  • Call the main method.

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