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# introtoproghw8 - IT 103 Homework 8 6 An infinite loop is...

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IT 103 08/16/14 Homework 8 6. An infinite loop is continuous loop that will repeat until the program is interrupted. WHILE y = 1 THEN: X = X + 1 END WHILE 7. a for loop looks like a while loop in a flowchart. 8. It is critical to initialize the accumulator because if the value of the accumulator is anything other than 0 then the accumulator’s value at the end of loop will be incorrect. 9. An advantage of using a sentinel is to tell the programmer or user when to a loop has reached its end. For example when processing a long sequence of values. 10. A sentinel value must be carefully selected because if it isn’t it could be mistaken for actual data in sequence. Algorithm Workbench 3.

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For intNum = 0 To 1000 Step 10 lstNumbers.Items.Add(intNum) Next intNum 4.. For intNum = 0 To 1000 Step 10 lstNumbers.Items.Add(intNum) Next intNumFor intCount = 1 To 10 intNum = CInt(InputBox("Enter a number.")) intTotal += intNum Next count
9. For intCount = 0 To 49 lstOutput.Items.Add(intCount) Next intCount 10. intX = 50 Do While intX >= 0 lstOutput.Items.Add(intX)

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Unformatted text preview: intX -= 1 Loop Programming Exercises 7. Average Rainfall: def main(): years = int(input('Enter the number of years: ')) total_rainfall = 0.0 for a in range(years): for b in range(12): rainfall = float(input('Enter inches of rain for the month: ')) total_rainfall += rainfall months = years * 12 print('Number of months:', months) print('Total inches of rainfall:', total_rainfall) print('Average rainfall per month for entire period: ', format(total_rainfall / months, '.2f')) main() 9. Pennies for Pay: def main(): days = int(input('Enter number of days: ')) print('\nDay\t\tSalary') print('-----------------------') total_salary = 0.0 for d in range(1, days + 1): salary = (2 ** (d - 1)) / 100 total_salary += salary print(d, '\t\t', '\$', format(salary, ',.2f'), sep='') print('\nTotal Pay: \$', format(total_salary, ',.2f'), sep='') main() 10. Largest and Smallest: def main(): for r in range(6): print('#', end='') for c in range(r): print(' ', end='') print('#') main()...
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• Fall '14
• Control flow, loop, sentinel value, total_rainfall += rainfall

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