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Selection Structure. by Yonglei Tao. Conditional Statements. Write an algorithm that asks the user for two numbers , and print the larger one. Get the values of a, b from user If the value of a is greater than the value of b then print “The larger number is ” & a Else

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Selection structure

Selection Structure

by Yonglei Tao


Conditional statements
Conditional Statements

  • Write an algorithm that asks the user for two numbers, and print the larger one.

    Get the values of a, b from user

    If the value of a is greater than the value of b then

    print “The larger number is ” & a

    Else

    print “The larger number is ” & b

  • Test 1:What does the program print if the user enter 10, 3?

  • Test 2:What does the program print if the user enter 2, 11?


Example
Example

  • Write an algorithm to compute the distance traveled and the average miles per gallon on a trip when given as input the number of gallons used and the starting and ending mileage readings on the odometer.

    get gallons, start, end

    distance = end – start

    mpg = distance / gallons

    print mpg

    if mpg > 25.0 then

    print “You are getting good gas mileage”


Exercise
Exercise

  • Write an algorithm that asks the user to enter three numbers, and computes and prints out the largest number