CSC 171 - Introduction to Computer Programming

Lab Assignment #8 - Working With Conditional Loops

Due Monday, October 2, 2023

Conditional loops repeat as long as - or until - some condition is true. The following programming example illustrates how they work:

# A Name Guessing Game - similar to the Magic Number game

# The name that we are guessing
name = "George"

# Get the first guess and set numGuesses accordingly
guess = input("What\'s my name?")
numGuesses = 1

Repeat as long as your guess is wrong
while guess != name:
    numGuesses = numGuesses + 1
    print("No, it isn\'t ", guess, " but try again.")
    guess = input("What\'s my name?")

# The player is finally right
print("YES!  It IS ", name)
print("It took you ", numGuesses, " guesses.")
 

The flowchart will look very similar to what we drew when working with counting loops, but the decision is different:

• You are going to write a program that prints the first five numbers that are divisible by 7 and whose last digit is a 5.
• You will need to use a conditional loop and you will test each number starting from 1 to see if it is divisible by 7 (x % 7 ==0) and if the last digit is a 5 (x %10 ==5). Print each of these numbers.
• Keep a count of how many such numbers you find, because you will stop when you have found five such numbers.

You will submit a flowchart, your pseudocode, and your Python program (properly commented).

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