Description
Honor Code
We value academic integrity very highly. Please read the Honor Code section on our course webpage to make sure you understand what is considered as plagiarism and what the penalties are.0The following are some of the highlights:
Do NOT try your “luck” – we use sophisticated plagiarism detection software to find cheaters.0We also review codes for potential cases manually.
The penalty (for BOTH the copier and the copiee) is not just getting a zero in your assignment.0Please read the Honor Code thoroughly.
Serious offenders will fail the course immediately, and there will be additional disciplinary actions0from the department and university, upto and including expulsion.
End of Honor Code
Objectives & Intended Learning Outcomes
The objective of this assignment is to provide you with practice on C++ basic variables and control flows.0Upon completion of this assignment, you should be able to:
-
Use basic variables in C++, like int, char, bool, etc.
-
Use if, if-else, switch statements to control program flow
-
Use relational operators and logical operators to control program flow.
-
Use for, while, and do-while to write loops, as well as use break and continue to0exit loops.
End of Objectives & Intended Learning Outcomes
11/25/22, 9:46 PM COMP 2012H Assignment 1: Calendar
The Gregorian calendar0is the de facto international standard and is used almost everywhere in the world for civil purposes.0The widely used solar aspect is a cycle of leap days in a 400-year cycle designed to0keep the duration of the year aligned with the solar year.
The Gregorian calendar has also been implemented in Linux/Unix command: cal0and ncal. If you are using Mac or Linux computers, you may try these0commands in your terminal:
-
cal -m 9 20220 September 20220
-
-
Su
Mo Tu
We Th
Fr Sa0
0
0
0
1
2
30
4
5
6
7
8
9
100
11
12
13
14
15
16
170
18
19
20
21
22
23
240
25
26
27
28
29
300
-
-
ncal -m 9 20220 September 20220
-
-
Mo
5 12 19 260
Tu
6 13 20 270
We
7 14 21 280
Th
1
8 15 22 290
Fr
2
9 16 23 300
Sa
3
10 17 240
Su
4
11 18 250
> cal
20230
20230
January
February
March0
Su Mo Tu We Th Fr Sa
Su Mo Tu We Th Fr Sa
Su Mo Tu We Th
Fr Sa0
1
2
3
4
5
6
7
1
2
3
4
1
2
3
40
8
9
10 11 12 13 14
5
6
7
8
91011
5
6
7
8
9
10
110
15
16
17 18 19 20 21
12 13 14 15
16 17 18
12
13
14
15
16
17
180
22
23
24 25 26 27 28
19 20 21 22
23 24 25
19
20
21
22
23
24
250
29
30
31
26 27 28
26
27
28
29
30
310
-
-
-
April
May
June0
Su Mo Tu We Th Fr Sa
Su Mo Tu We Th Fr Sa
Su Mo
Tu We Th
Fr Sa0
1
1
2
3
4
5
6
1
2
30
2
3
4
5
6
7
8
7
8
9
10
11
12 13
4
5
6
7
8
9
100
9101112131415
14 15
16
17
18
19 20
11
12
13
14
15
16
170
16 17 18 19 20 21 22
21 22
23
24
25
26 27
18
19
20
21
22
23
240
23 24 25 26 27 28 29
28 29
30
31
25
26
27
28
29
300
300
July
August
September0
Su Mo Tu We Th Fr Sa
Su Mo Tu We Th Fr Sa
Su Mo
Tu We Th
Fr Sa0
1
1
2
3
4
5
1
20
2
3
4
5
6
7
8
6
7
8
9101112
3
4
5
6
7
8
90
9101112131415
13 14
15
16
17
18 19
10
11
12
13
14
15
160
16 17 18 19 20 21 22
20 21
22
23
24
25 26
17
18
19
20
21
22
230
23 24 25 26 27 28 29
27 28
29
30
31
24
25
26
27
28
29
300
30 310
October
November
December0
-
11/25/22, 9:46 PM COMP 2012H Assignment 1: Calendar
In this assignment, you can feel free to use anything you know, and there is no0need to restrict yourself to only use what we have taught so far. For example,0if you think using a function will make your codes tidy, feel free to do it.0However, you can only use header file #include <iostream>0.
If you would like to try the bonus tasks, it is very likely that you0will find functions useful.
Otherwise, your codes might look quite messy.
End of Description
Tasks
This section describes all you will need to implement.0You may need to check Program Overview0section to have an overview0of this program before reading this part.
Task 1 – Receive and validate user input
As described in Program Overview, ask the user to0input (1) year, (2) month, (3) start each week on Monday or Sunday, and0(4) print horizontally or vertically.
If the user input is not valid, the program will keep asking the user to input until a valid one is received.0You don’t need to consider the cases when user input incorrect data types. For example,0if we want an integer, you can assume the user will always input an integer, not0a character, etc.
For students who do bonus part: You should skip (3) and (4)0if user input month -1 or -3, as described in0Bonus Tasks.
Example: (user input is displayed in red)
Enter year (in range 1800-9999): 1230
Enter year (in range 1800-9999): 123450
Enter year (in range 1800-9999): 18000
Enter month (in range 1-12): -1000
Enter month (in range 1-12): 1000
Enter month (in range 1-12): 1 0
Enter the first day of week (‘s’ for Sunday, ‘m’ for Monday): k
Enter the first day of week (‘s’ for Sunday, ‘m’ for Monday): o
Enter the first day of week (‘s’ for Sunday, ‘m’ for Monday): s
Print horizontally (h) or vertically (v): c0
Print horizontally (h) or vertically (v): o0
Print horizontally (h) or vertically (v): m0
Print horizontally (h) or vertically (v): p0
Print horizontally (h) or vertically (v): h0
[Start printing the calendar, remaining parts are ignored. See examples in other tasks]
Here are some code snippets that you can copy and paste to your program,0if you find it convenient.
cout << “Enter year (in range 1800-9999): “;0
cout << “Enter month (in range 1-12): “;0
cout << “Enter the first day of week (‘s’ for Sunday, ‘m’ for Monday): “;0
cout << “Print horizontally (h) or vertically (v): “;
Task 2 – Horizontal calendars with week starts on Sunday
When user chooses to start each week on Sunday and print the calendar horizontally,0display the calendar in such style.
11/25/22, 9:46 PM COMP 2012H Assignment 1: Calendar
First a title should be displayed, with format “[Month Name] [Year]”, for example, “January 1800”. To make it easier, please make the title left-aligned.
Then, display the names of weekdays, from “Su” to “Sa”, words should be0separated by one space.
Finally, format the calendar like the example below. Dates should be0separated by one space, and for dates with only one digit, the digit0should be right-aligned. After printing the calendar, the program finishes.
It’s ok to have extra spaces at the end of each line.0See details in Grading sectio
Note: This should be the same as Linux command0cal -m [month] [year], except that you don’t need to0align the title or ouput additional blank line at the end.
Example: (user input is displayed in red)
-
-
Enter
year (in
range 1800-9999): 18000
Enter
month (in range 1-12): 10
Enter
the first day of week (‘s’ for Sunday, ‘m’ for Monday): s
Print horizontally (h) or vertically (v): h0
January 18000
Su
Mo Tu
We Th
Fr Sa0
1
2
3
40
5
6
7
8
9
10
110
12
13
14
15
16
17
180
19
20
21
22
23
24
250
26
27
28
29
30
31
-
Task 3 – Horizontal calendars with week starts on Monday
When user chooses to start each week on Monday and print the calendar horizontally,0display the calendar in such style.
First a title should be displayed, with format “[Month Name] [Year]”, for example, “January 1800”. To make it easier, please make the title left-aligned.
Then, display the names of weekdays, from “Mo” to “Su”, words should be0separated by one space.
Finally, format the calendar like the example below. Dates should be0separated by one space, and for dates with only one digit, the digit0should be right-aligned. After printing the calendar, the program finishes.
It’s ok to have extra spaces at the end of each line.0See details in Grading section
Example: (user input is displayed in red)
Enter year (in range 1800-9999): 18000
Enter month (in range 1-12): 10
Enter the first day of week (‘s’ for Sunday, ‘m’ for Monday): m
Print horizontally (h) or vertically (v): h0
January 18000
Mo Tu We Th Fr Sa Su0
1 2 3 4 50
-
7 8 91011120
13 14 15 16 17 18 190
20 21 22 23 24 25 260
27 28 29 30 31
Task 4 – Vertical calendars with week starts on Sunday
When user chooses to start each week on Sunday and print the calendar vertically,0display the calendar in such style.
First a title should be displayed, with format “[Month Name] [Year]”, for example, “January 1800”. To make it easier, please make the title left-aligned.
Then, display the names of weekdays, from “Su” to “Sa”,0as the first column on the left. Those names0and dates you will print later (remaining columns) should be0separated
11/25/22, 9:46 PM COMP 2012H Assignment 1: Calendar
by one space.
Finally, format the calendar vertically, like the example below.0Dates should be separated by one space, and for dates with only one digit, the digit0should be right-aligned.
After printing the calendar, the program finishes.
It’s ok to have extra spaces at the end of each line.0See details in Grading section
Example: (user input is displayed in red)
-
-
Enter
year (in
range 1800-9999): 18000
Enter
month (in range 1-12): 10
Enter
the first day of week (‘s’ for Sunday, ‘m’ for Monday): s
Print horizontally (h) or vertically (v): v0
January 18000
Su
5
12 19
260
Mo
6
13 20
270
Tu
7
14 21
280
We
1
8
15 22
290
Th
2
9
16 23
300
Fr
3
10
17 24
310
Sa
4
11
18 25
-
Task 5 – Vertical calendars with week starts on Monday
When user chooses to start each week on Monday and print the calendar vertically,0display the calendar in such style.
First a title should be displayed, with format “[Month Name] [Year]”, for example, “January 1800”. To make it easier, please make the title left-aligned.
Then, display the names of weekdays, from “Mo” to “Su”,0as the first column on the left. Those names0and dates you will print later (remaining columns) should be0separated by one space.
Finally, format the calendar vertically, like the example below.0Dates should be separated by one space, and for dates with only one digit, the digit0should be right-aligned.
After printing the calendar, the program finishes.
It’s ok to have extra spaces at the end of each line.0See details in Grading section
Note: This should be the same as Linux command0ncal -M [month] [year], except that you don’t need to0align the title or ouput additional blank line at the end.
Example: (user input is displayed in red)
-
-
Enter
year (in
range 1800-9999): 18000
Enter
month (in range 1-12): 10
Enter
the first day of week (‘s’ for Sunday, ‘m’ for Monday): m
Print horizontally (h) or vertically (v): v0
January 18000
Mo
6
13 20
270
Tu
7
14 21
280
We
1
8
15 22
290
Th
2
9
16 23
300
Fr
3
10
17 24
310
Sa
4
11
18 25
Su
5
12
19 26
-
Bonus Task 1 – Print calendar of a whole year
This is a bonus task, please see grading details in0Grading section
When user chooses to print the calendar of a whole year, indicating by0entering -1 as month, we will start each week on Sunday and print the calendar horizontally.
11/25/22, 9:46 PM COMP 2012H Assignment 1: Calendar
First a title should be displayed, with format “Year [Year no.]”, for example,0″Year 1800″.
To make it easier, please make the title left-aligned.
Next, for each month:
A sub-title should be displayed, with format “[Month Name]”, for example,
“January”. To make it easier, please make it left-aligned.
Display the names of weekdays, from “Su” to “Sa”, words should be0separated by one space.
Finally, format the calendar like the example below. Dates should be0separated by one space, and for dates with only one digit, the digit0should be right-aligned.
You should print three months horizontally. Two adjacent months0in the same row should be separated by two spaces.
If any of the horizontal three months has 6 rows enumerating the date, the remaining horizontal months should also have 6 rows for alignment.
There is one blank line between two set of horizontal three months.
After printing the calendar, the program finishes.
It’s ok to have extra spaces at the end of each line.0See details in Grading section
Note: This should be the same as Linux command0cal [year], except that you don’t need to align the title and sub-titles or ouput additional blank line at the end.
Example: (user input is displayed in red)
-
-
Enter
year (in
range 1800-9999): 18000
Enter
month (in range
1-12): -10
Year 18000
January
February
March
Su
Mo Tu
We Th
Fr Sa
Su
Mo Tu We Th
Fr Sa
Su
Mo Tu
We Th Fr Sa0
1
2
3
4
1
10
5
6
7
8
91011
2
3
4
5
6
7
8
2
3
4
5
6
7
80
12
13
14
15
16
17
18
9
10 11
12 13
14
15
9
10
11
12 13
14 150
19
20
21
22
23
24
25
16
17 18
19 20
21
22
16
17
18
19 20
21 220
26
27
28
29
30
31
23
24 25
26 27
28
23
24
25
26 27
28 290
30
31
April
May
June0
Su
Mo Tu
We Th
Fr Sa
Su
Mo Tu We Th
Fr Sa
Su
Mo Tu
We Th Fr Sa0
1
2
3
4
5
1
2
3
1
2
3
4
5
6
70
6
7
8
9
10
11
12
4
5
6
7
8
9
10
8
9
10
11 12
13 140
13
14
15
16
17
18
19
11
12 13
14 15
16
17
15
16
17
18 19
20 210
20
21
22
23
24
25
26
18
19 20
21 22
23
24
22
23
24
25 26
27 280
27
28
29
30
25
26 27
28 29
30
31
29
30
July
August
September0
Su
Mo Tu
We Th
Fr Sa
Su
Mo Tu We Th
Fr Sa
Su
Mo Tu
We Th Fr Sa0
1
2
3
4
5
1
2
1
2
3
4
5
60
6
7
8
9
10
11
12
3
4
5
6
7
8
9
7
8
9
10 11
12 130
13
14
15
16
17
18
19
10
11 12
13 14
15
16
14
15
16
17 18
19 200
20
21
22
23
24
25
26
17
18 19
20 21
22
23
21
22
23
24 25
26 270
27
28
29
30
31
24
25 26
27 28
29
30
28
29
300
310
October
November
December0
Su
Mo Tu
We Th
Fr Sa
Su
Mo Tu We Th
Fr Sa
Su
Mo Tu
We Th Fr Sa0
1
2
3
4
1
1
2
3
4
5
60
5
6
7
8
9
10
11
2
3
4
5
6
7
8
7
8
9
10 11
12 130
12
13
14
15
16
17
18
9
10 11
12 13
14
15
14
15
16
17 18
19 200
19
20
21
22
23
24
25
16
17 18
19 20
21
22
21
22
23
24 25
26 270
26
27
28
29
30
31
23
24 25
26 27
28
29
28
29
30
310
30
-
Bonus Task 2 – Print calendar of adjacent 3 months
This is a bonus task, please see grading details in0Grading section
11/25/22, 9:46 PM COMP 2012H Assignment 1: Calendar
When user chooses to print the calendar of adjacent 3 months0(last month, current month, and next month), indicating by0first enter a valid year, and then enter -3 as month.0Then, the program will ask which month do the user want to print as current month0(note that we only have this prompt in this task).0After that, we will start each week on Sunday and print the calendar horizontally.
Note: Since we only process year 1800-9999, so if user want0to print adjacent 3 months, with Jan 1800 or Dec 9999 as current month,0we will consider the case invalid, and your program should ask user to input again.
You should print the three months in the same row. Two adjacent months0in the same row should be separated by two spaces. For each month,
A sub-title should be displayed, with format “[Month Name] [Year]”, for example, “August 2022”. To make it easier, please make it left-aligned.
Display the names of weekdays, from “Su” to “Sa”, words should be0separated by one space.
Finally, format the calendar like the example below. Dates should be0separated by one space, and for dates with only one digit, the digit0should be right-aligned.
After printing the calendar, the program finishes.
It’s ok to have extra spaces at the end of each line.0See details in Grading section
Note: This should be the same as Linux command0cal -3 -m [center month] [year], except that you don’t need to0align the sub-titles or ouput additional blank line at the end.
Example: (user input is displayed in red)
-
-
Enter
year (in
range 1800-9999): 18000
Enter
month (in range
1-12): -30
Enter the month in the center (in range
1-12):
20
January 1800
February
1800
March
18000
Su
Mo Tu
We Th
Fr Sa
Su Mo Tu
We Th Fr
Sa
Su
Mo Tu
We Th Fr Sa0
1
2
3
4
1
10
5
6
7
8
91011
2
3
4
5
6
7
8
2
3
4
5
6
7
80
12
13
14
15
16
17
18
9
10 11
12 13
14
15
9
10
11
12
13
14 150
19
20
21
22
23
24
25
16
17 18
19 20
21
22
16
17
18
19
20
21 220
26
27
28
29
30
31
23
24 25
26 27
28
23
24
25
26
27
28 290
30
31
-
End of Tasks
Resources & Sample I/O
Skeleton code: No skeleton for this PA, you are expected to start from scratch.
Demo programs: Windows /0MacOS Intel /0Linux (compiled on CS Lab 2 Machine)
Revealed test cases:0Download here.0They are the same as examples in Tasks section. Please note that test cases on ZINC before deadline are the same as those examples.0 Additional note: You may notice that the format of test cases downloaded0is not the same as the format you see in your terminal. This is because when we test your program, we will let your program read input from a file and output to another file.0Please refer to this section0about how you can test your program by yourself.
Sample 1: horizontal, start weeks on Sunday
Sample 2: horizontal, start weeks on Monday
Sample 3: vertical, start weeks on Sunday
Sample 4: vertical, start weeks on Sunday
Sample 5: Bonus 1: print whole year
Sample 6: Bonus 2: print adjacent 3 months
End of Resources & Sample I/O
11/25/22, 9:46 PM COMP 2012H Assignment 1: Calendar
Submission & Grading
Deadline: Sat, 17/9/22 HKT 23:59.0
Best 10 out of 11 PAs will be counted towards your course grade, each with 6.5% at most via Automated Grading on the0ZINC Online Submission System.0Compress the single source code file main.cpp by itself as PA1.zip0for submission to ZINC.
Grading Scheme
The grading process will be performed entirely on0ZINC Online Submission System.0We will input some contents to your program, and0simply compare its output with expected output. To avoid being too demanding, ZINC will consider the results are identical0as long as they “look exactly the same”. To be more specific,0trailing spaces at the end of each line and a newline character0at the end of the file will be ignored.
For example, if two lines are0“1 2 3 4” and “1 2 3 4 “,0they will be considered identical.
However,0if two lines are “1 2” and “1 2″,0they are not the same, since we only0ignore
spaces at the end of each line/the file.
Before the deadline, the test cases on ZINC will only contain a few cases. If you passed0those tests, it only means your program can successfully run on ZINC and can pass0those test cases. The result is by no means complete and the score is irrelavant to0your actual score.0In the actual grading stage after the deadline, we will use a totally different set of0test cases, which is expected to be more complete and more strict,0to test the correctness of your program.
Please ensure that you submit to ZINC well before the deadline as all late submissions will be automatically rejected.
Note: When testing Task 1-5, we guarantee that there won’t be input where month is -1 or -3.
So even if you complete Bonus part, your grade in Task 1-5 will not be affected.
How to test my program
You may compile your code using this command:0(the -Wall flag is optional, it will show all warnings to you)
g++ -o main main.cpp -std=c++11 -Wall
Next, please place main, input.txt, output.txt0(i.e., the sample input/output that we provided)0in the same folder, and0let your program read input from file input.txt and output result0to file my_output.txt by using this command:0(you can change the filename, e.g. input3.txt and output3.txt, etc.)
./main < input.txt > my_output.txt
If you are using Windows PowerShell, you may use the following command instead:
Get-Content input.txt | ./main > my_output.txt
Then you may check if your output in0my_output.txt is the same as the expected output
output.txt0by using this online diff checker tool
11/25/22, 9:46 PM COMP 2012H Assignment 1: Calendar
By default it will not ignore trailing spaces and blank lines, you need to0click “Tools” at the top-right, then “Trim whitespace”, as the image shows.
Alternative: If you are using a Linux machine (MacOS is not ok) or using CS Lab 2 machines, you can directly0use this command:
diff -Z -B output.txt my_output.txt
This command will automatically ignore trailing spaces and blank lines.0If you see nothing after executing this command, then the contents in these two files0is considered the same.
End of Submission & Grading
Frequently Asked Questions
Q: My code doesn’t work, there is an error/bug, here is the code, can you help me fix it?0
A: As the assignment is a major course assessment, to be fair, you are supposed to work on it on your own and we should not finish the tasks for you. We are happy to help with explanations and0advice, but we shall not directly debug the code for you.
Q: The demo program enters an infinite loop when given unexpected input (e.g. inputting a character when expecting an integer). Is this a bug? 0
A: This is just the behavior of cin >> variable; when given input that is0not type-matched. You don’t need to worry about such for PA1, you can assume the user always0input the correct data type. For example, if we want an int, the user will always0input an int, not other weird things. However, the user input can still be0invalid, for example, you want an integer between 1800-9999, and the user may input 1700, or012345, etc
Q: What are the restrictions regarding modifying the header files, writing our own helper functions, including extra header files, etc.? 0
A: The only hard restriction is that you can only submit main.cpp to ZINC, and0include only one header file #include <iostream>. Anything else0are not strictly prohibited, as long as your code can run on ZINC.
End of FAQ
Acknowledgement – The assignment 1 is drafted by LIU Jianmeng.
Maintained by COMP 2012H Teaching Team © 2022 HKUST Computer Science0and Engineering
LIU, Jianmeng
https://course.cse.ust.hk/comp2012h/assignments/PA1/Description/ 10/10
