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Introduction to Computer Programming

Spring 2022

Programming Assignment 02

Conditions

Instructions

This programming assignment consists of 2 programming exercises.

You have to:

1. create Python files on your computer (be careful of filenames)

2. edit them according to the assignment

3. verify on your computer that it works (run them and check the ouput in the shell)

4. upload the files to Gradescope (upload directly the .py files, not a .zip file)

5. check the autograder report on Gradescope

6. go back to step 2 if necessary

The autograder will evaluate your code for a few testcases. If some testcases fail, the autograder should show you what is your code output, and what is the expected output.

Note:

The use of concepts that were not yet covered in class yet is prohibited. You cannot use for loops, lists, functions, …

Exercise 1 - Which full moon?

There are (at least) three special types of full moons:

• Super Moon: the full moon occurs when the moon is at its closest approach to earth (less than 230,000 km away).

• Blue Moon: the second full moon in a calendar month. In other words, any full moon on the 29th , 30th , or 31st of a month.

• Blood Moon: a lunar eclipse during a full moon.

Write a program (in the file exercise1 .py) that ask the user to answer questions and that will print out the type of moon – ”Full Moon”, ”Super Moon”, ”Blue Moon”, ”Blood Moon”, based on the values of the variables below. Note that for the moon to be any of these special kinds of moons, it must also be full.

phase = "Full"

distance = 228000

date = 1

eclipse = False

Note, though, that multiple modifiers can be true at the same time. We could have a Super Blue Moon, a Blue Blood Moon, or even a Super Blue Blood Moon. Always print those modifiers in that order. If any of these special modifiers is present, do not include the word ”Full”. If none of them are present, but the moon is Full, then print ”Full Moon”. If none of them are present at all, print ”Moon”.

Sample example 1 (the user input is in red, the printed output is in blue):

Is the moon full? If yes enter Full if no enter No: Full

Enter the distance of the moon from the earth: 230000

Enter the date of the month: 1

Is there an eclipse? Enter True for yes and False for no: False

Full Moon

Sample example 2:

Is the moon full? If yes enter Full if no enter No: No

Enter the distance of the moon from the earth: 240000

Enter the date of the month: 8

Is there an eclipse? Enter True for yes and False for no: False

Moon

Sample example 3:

Is the moon full? If yes enter Full if no enter No: Full

Enter the distance of the moon from the earth: 228000

Enter the date of the month: 30

Is there an eclipse? Enter True for yes and False for no: True

Super Blue Blood Moon

Exercise 2 - Chess board

Positions on a chess board are identified by a letter and a number. The letter identifies the column, while the number identifies the row, as shown below:

Write a program (in the file exercise2 .py) that reads a position from the user. Then use modular arithmetic to report the color of the square in that row. Your program may assume that a valid position will always be entered. It does not need to perform any error checking.

Sample example 1 (the user input is in red, the printed output is in blue):

Enter a chess board position: d5

This case is white

Sample example 2:

Enter a chess board position: g7

This case is black

Exercise 3 - Leap year and soccer

Write a program (in the file exercise3 .py) that does the following (in the specified order):

1. asks the user to input a year (type: int)

2. prints the message Leap year or Not leap year on a first line

3. then, only if applicable, prints the message World Cup year or Euro Cup year on a second line